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Vrettos NN, Wang P, Wang Y, Roberts CJ, Xu J, Yao H, Zhu Z. Controlled release of MT-1207 using a novel gastroretentive bilayer system comprised of hydrophilic and hydrophobic polymers. Pharm Dev Technol 2023; 28:724-742. [PMID: 37493413 DOI: 10.1080/10837450.2023.2238822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/17/2023] [Indexed: 07/27/2023]
Abstract
In the present study, novel gastroretentive bilayer tablets were developed that are promising for the once-a-day oral delivery of the drug candidate MT-1207. The gastroretentive layer consisted of a combination of hydrophilic and hydrophobic polymers, namely polyethylene oxide and Kollidon® SR. A factorial experiment was conducted, and the results revealed a non-effervescent gastroretentive layer that, unlike most gastroretentive layers reported in the literature, was easy to prepare, and provided immediate tablet buoyancy (mean floating lag time of 1.5 s) that lasted over 24 h in fasted state simulated gastric fluid (FaSSGF) pH 1.6, irrespective of the drug layer, thereby allowing a 24-hour sustained release of MT-1207 from the drug layer of the tablets. Furthermore, during in vitro buoyancy testing of the optimised bilayer tablets in media of different pH values (1.0, 3.0, 6.0), the significant difference (one-way ANOVA, p < 0.001) between the respective total floating times indicated that stomach pH effects on tablet buoyancy are important to be considered during the development of non-effervescent gastroretentive formulations and the choice of dosing regimen. To the best of our knowledge, this has not been reported before, and it should probably be factored in when designing dosing regimens. Finally, a pharmacokinetic study in Beagle dogs indicated a successful in vivo 24-hour sustained release of MT-1207 from the optimised gastroretentive bilayer tablet formulations with the drug plasma concentration remaining above the estimated minimum effective concentration of 1 ng/mL at the 24-hour timepoint and also demonstrated the gastroretentive capabilities of the hydrophilic and hydrophobic polymer combination. The optimised formulations will be forwarded to clinical development.
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Affiliation(s)
| | - Peng Wang
- School of Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Yuhan Wang
- School of Pharmacy, University of Nottingham, Nottingham, United Kingdom
| | - Clive J Roberts
- School of Pharmacy, University of Nottingham, Nottingham, United Kingdom
| | - Jinyi Xu
- School of Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Hong Yao
- School of Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Zheying Zhu
- School of Pharmacy, University of Nottingham, Nottingham, United Kingdom
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2
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Mehmood S, Farid Hasan SM, Noor R, Sikandar M, Mohani SNUH, Israr F, Ali SI, ullah M, Hassan F. Influence of Prunus domestica gum on the release profiles of propranolol HCl floating tablets. PLoS One 2022; 17:e0271442. [PMID: 36018842 PMCID: PMC9417000 DOI: 10.1371/journal.pone.0271442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 06/30/2022] [Indexed: 11/18/2022] Open
Abstract
Propranolol hydrochloride is a beta-blocker used for the management and treatment of hypertension, angina, coronary artery disease, heart failure, fibrillation, tremors, migraine etc. The objective of the present study was to design Propranolol Hydrochloride floating tablets by direct compression method and to explore the role of a new gum as a matrix former. A 22 full factorial design was selected for the present study. Prunus domestica gum and HPMC (K4M) were used as independent variables, swelling index and drug dissolution at 12 hours as dependent variables. Formulations were subjected to pre- and post-compression tests that showed good micromeritics and buoyancy characteristics (Carr’s index 11.76%–14.00%, Hausner’s ratio 1.13°–1.16°, angle of repose 22.67°–25.21°, floating lag time 56–76 seconds, total floating time 18–25 hours and swelling index 59.87%–139.66%). The cumulative drug release in 0.1 N HCl at 12 hours was 72%–90% (p<0.05). Weibull model was found to be the best fit model (R2>0.99) among all other studied models. Multiple regression showed a significant effect of Prunus domestica gum and HPMC K4M on the swelling index and dissolution profiles of propranolol HCl (p<0.05). On the basis of better in-vitro performance and cost-effectiveness, formulation F4 was the best formulation. It is evident from the results that Prunus domestica gum possesses excellent drug release retardant potential for the floating drug delivery system and this new gum should be further explored alone or with other natural and synthetic polymers in future studies.
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Affiliation(s)
- Salman Mehmood
- Department of Pharmaceutics, Faculty of Pharmacy & Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
| | - Syed Muhammad Farid Hasan
- Department of Pharmaceutics, Faculty of Pharmacy & Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
- * E-mail:
| | - Rabia Noor
- Department of Pharmaceutics, Faculty of Pharmacy & Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
| | - Muhammad Sikandar
- Department of Pharmaceutics, Faculty of Pharmacy & Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
| | | | - Fauzia Israr
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Jinnah Sindh Medical University, Karachi, Pakistan
| | - Syed Imran Ali
- Department of Pharmacy Practice, Faculty of Pharmacy, Ziauddin University, Karachi, Pakistan
| | - Majeed ullah
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, Pakistan
| | - Fouzia Hassan
- Department of Pharmaceutics, Faculty of Pharmacy & Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
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Mahmood A, Erum A, Mumtaz S, Tulain UR, Malik NS, Alqahtani MS. Preliminary Investigation of Linum usitatissimum Mucilage-Based Hydrogel as Possible Substitute to Synthetic Polymer-Based Hydrogels for Sustained Release Oral Drug Delivery. Gels 2022; 8:gels8030170. [PMID: 35323283 PMCID: PMC8953505 DOI: 10.3390/gels8030170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/05/2022] [Accepted: 03/06/2022] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was to investigate the potential of Linum usitatissimum mucilage, a natural polymer, in developing a sustained release hydrogel for orally delivered drugs that require frequent dosing. For this purpose, nicorandil (a model drug)-loaded hydrogels with various feed ratios of Linum usitatissimum mucilage, acrylamide (monomer) and methylene bis-acrylamide (crosslinker) were prepared. The newly synthesized hydrogel formulations were probed fundamentally with respect to swelling behaviour, solvent penetration, and the release of the drug from the hydrogels. Later, the selected formulations were further characterized by Fourier-transform infrared spectroscopy, thermal analysis, X-ray diffraction analysis, and scanning electron microscopy. The swelling coefficient demonstrated a linear relation with the polymer ratio; however, an inverse behaviour in the case of monomer and crosslinker was observed. The drug release studies, performed at pH 1.2 and 4.5 and considering the dynamic environment of GIT, demonstrated that all formulations followed the Korsmeyer–Peppas model, displaying a slow drug release via diffusion and polymer erosion. FTIR analysis confirmed the successful grafting of acrylamide on linseed mucilage. Furthermore, scanning electron microscopy revealed a clear surface morphology with folds and pinholes in the hydrogel. Therefore, based upon the in-vitro outcomes, it can be concluded that a promising sustained release hydrogel can be prepared from natural polymer, Linum usitatissimum mucilage, offering many-fold benefits over the conventional synthetic polymers for oral delivery of drugs.
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Affiliation(s)
- Arshad Mahmood
- College of Pharmacy, Al Ain University, Abu Dhabi campus, Abu Dhabi 51133, United Arab Emirates;
- AAU Health and Biomedical Research Center, Al Ain University, Abu Dhabi 51133, United Arab Emirates
| | - Alia Erum
- Faculty of Pharmacy, College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan; (S.M.); (U.R.T.)
- Correspondence:
| | - Sophia Mumtaz
- Faculty of Pharmacy, College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan; (S.M.); (U.R.T.)
| | - Ume Ruqia Tulain
- Faculty of Pharmacy, College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan; (S.M.); (U.R.T.)
| | - Nadia Shamshad Malik
- Faculty of Pharmacy, Capital University of Science and Technology, Islamabad 44000, Pakistan;
| | - Mohammed S. Alqahtani
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11362, Saudi Arabia;
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Narayana S, Ahmed MG. Design and evaluation of ocular hydrogel containing combination of ofloxacin and dexamethasone for the treatment of conjunctivitis. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Ijaz QA, Latif S, Shoaib QUA, Rashid M, Arshad MS, Hussain A, Bukhari NI, Riaz S, Abbas N. Preparation and Characterization of pH-Independent Sustained-Release Tablets Containing Hot Melt Extruded Solid Dispersions of Clarithromycin : Tablets Containing Solid Dispersions of Clarithromycin. AAPS PharmSciTech 2021; 22:275. [PMID: 34773162 DOI: 10.1208/s12249-021-02115-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/09/2021] [Indexed: 11/30/2022] Open
Abstract
The limited solubility of clarithromycin (CAM), coupled with low bioavailability and rapid elimination, are major shortcomings, needed to be addressed to achieve optimum therapeutic goals. Therefore, sustained-release (SR) tablets containing solid dispersion (SD) granules of CAM were prepared in this study. Initially, SD granules of CAM were prepared by hot melt extrusion (HME) technique using Kollidon VA64 as a hydrophilic carrier. The saturation solubility of SD showed almost 4.5-fold increase as compared to pure CAM in pH 6.8 medium. In vitro drug dissolution data indicated a substantial increase in the dissolution of SD as compared to that of pure CAM. The thermal stability of drug, carrier, and SD at elevated HME temperatures was evident from the results of thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Powder X-ray diffraction (PXRD) data and scanning electron microscope (SEM) images revealed a decrease in the crystallinity and the uniform dispersion of drug, respectively. Moreover, Fourier transformed infrared spectroscopy (FT-IR) data confirmed the formation of hydrogen bond between the carbonyl group of drug and the hydroxyl group of carrier. SD loaded sustained-release (SD-SR) matrix tablets were prepared with hydrophobic polymers (Eudragit RS100 and Eudragit RL100). The pH-independent swelling and permeability of both polymers were responsible for the sustained drug release from SD-SR tablets. Pharmacokinetic (PK) studies suggested a 3.4-fold increase in the relative bioavailability of SD-SR tablets as compared to that of pure CAM.
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Metformin hydrochloride entrapment in sorbitan monostearate for intestinal permeability enhancement and pharmacodynamics. Sci Rep 2021; 11:20153. [PMID: 34635740 PMCID: PMC8505636 DOI: 10.1038/s41598-021-99649-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 09/24/2021] [Indexed: 11/26/2022] Open
Abstract
Penetration enhancement of metformin hydrochloride via its molecular dispersion in sorbitan monostearate microparticles is reported. This represents basic philosophy to maximize its entrapment for maximum penetration effect. Drug dispersion in sorbitan monostearate with different theoretical drug contents (TDC) were prepared. Products showed excellent micromeritics and actual drug content (ADC) increased by increasing TDC. The partition coefficient of the drug products showed huge improvement. This indicates the drug entrapped in the polar part of sorbitan monostearate as a special image which effects on the drug release. The drug permeation profiles from the different products are overlapped with nearly equal permeation parameters. The permeation results suggested the main driving force for improving the drug paracellular pathway is its dispersion in sorbitan monostearate and is independent of ADC. Pharmacodynamic of the products showed a significant improvement than the drug alone at p ˂ 0.05. ANOVA test indicated the insignificant pharmacodynamic difference between the low, middle, and high ADC of the products. An excellent correlation founded between the drug permeation and pharmacodynamic precents. Drug permeation driving force via the paracellular pathway is its entrapment in sorbitan monostearate and independent on ADC. The technique is simple and the products had excellent micromeritics.
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Shaikh M, Desai N, Momin M, Bhatt LK. Formulation development and in-vitro/ex-vivo evaluation for a polysaccharide-based colon targeted matrix tablet. Curr Drug Deliv 2021; 18:1563-1573. [PMID: 34238183 DOI: 10.2174/1567201818666210708121739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/09/2021] [Accepted: 05/18/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The objective of this study was to develop and optimize a microflora-triggered colon targeted sustained-release dosage form using gum ghatti (GG) and hydroxypropyl methylcellulose (HPMC K100). METHODS GG and HPMC K100 were used to prepare microflora triggered colon targeted sustained-release dosage form. For evaluation, two different tablets comprising metoprolol succinate and mesalamine as an active ingredient were used with the objective of developing a platform technology for various categories of drugs. The tablets were coated with Eudragit® L100 and Eudragit® S100 to provide enteric coating and evaluated for hardness, thickness, friability, weight variation, disintegration, and drug content. In vitro release studies for the prepared tablets were carried out mimicking the physiological transit time. Further, the effects of microflora were evaluated using rat cecal content. RESULTS The in vitro dissolution profile of coated matrix tablets showed that 86.03±0.43% of metoprolol succinate and 80.26±0.67% of mesalamine were released at the end of 12 h. The ex vivo dissolution profile of coated matrix tablets showed that 96.50±0.27% of metoprolol succinate and 92.58±0.39% of mesalamine were released at the end of 12 h in the presence of rat ceacal content. The developed formulation was stable when subjected to the standard ICH stability study conditions. CONCLUSION The result of this study showed that gum ghatti together with hydroxypropyl methylcellulose could be successfully used for the preparation of microflora triggered colon targeted matrix tablets.
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Affiliation(s)
- Mohsina Shaikh
- Department of Quality assurance, SVKM's Dr Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India
| | - Neha Desai
- Department of Pharmaceutics, SVKM's Dr Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India
| | - Munira Momin
- Department of Pharmaceutics, SVKM's Dr Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India
| | - Lokesh Kumar Bhatt
- Department of Pharmacology, SVKM's Dr Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India
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Fabrication and Characterization of Chitosan-Tamarind Seed Polysaccharide Composite Film for Transdermal Delivery of Protein/Peptide. Polymers (Basel) 2021; 13:polym13091531. [PMID: 34068768 PMCID: PMC8126253 DOI: 10.3390/polym13091531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/05/2021] [Accepted: 05/08/2021] [Indexed: 11/21/2022] Open
Abstract
Transdermal drug delivery is used to deliver a drug by eliminating the first-pass metabolism, which increases the bioavailability of the drug. The present study aims to formulate the chitosan—tamarind seed polysaccharide composite films and evaluate for the delivery of protein/peptide molecules. Nine formulations were prepared and evaluated by using different parameters, such as physical appearance, folding endurance, thickness of film, surface pH, weight variation, drug content, surface morphology, percentage moisture intake and uptake, drug release kinetics, and drug permeability. The film weight variance was observed between 0.34 ± 0.002 to 0.47 ± 0.003 g. The drug level of the prepared films was found to be between 96 ± 1.21 and 98 ± 1.33μg. Their intake of moisture ranged between 2.83 ± 0.002 and 3.76 ± 0.001 (%). The moisture absorption of the films ranged from 5.33 ± 0.22 to 10.02 ± 0.61 (%). SEM images revealed a smooth film surface, while minor cracks were found in the film after permeation tests. During the first 4 days, drug release was between 13.75 ± 1.64% and 22.54 ± 1.34% and from day 5 to day 6, it was between 72.67 ± 2.13% and 78.33 ± 3.13%. Drug permeation during the first 4 days was 15.78 ± 1.23 %. Drug permeation (%) during the first 4 days was between 15.78 ± 1.23 and 22.49 ± 1.29 and from day 5 to day 6, it was between 71.49 ± 3.21 and 77.93 ± 3.20.
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Vilas S, Thilagar S. Formulation and optimisation of lamivudine-loaded Eudragit ® S 100 polymer-coated pectin microspheres for colon-specific delivery. IET Nanobiotechnol 2021; 15:90-99. [PMID: 34694732 PMCID: PMC8675772 DOI: 10.1049/nbt2.12010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 10/15/2020] [Accepted: 11/09/2020] [Indexed: 11/20/2022] Open
Abstract
This investigation is to find a prolonged or delayed drug release system, exclusively for the treatment of hepatitis-B to reduce the side effects, which arise when conventional solid dose forms are administered. To pursue this goal, lamivudine-loaded Eudragit-coated pectin microspheres have been formulated employing water/oil (W/O) emulsion evaporation strategy. The formulation was optimised using a 34 factorial design. A drug to polymer ratio of 1:2, the surfactant of 1 ml, the volume of 50 ml of processing medium with a stirring speed of 2500 rpm were found to be the optimal parameters to obtain the lamivudine-loaded Eudragit-coated pectin microspheres formulation with a high drug entrapment efficiency of 89.44% ± 1.44%. The in vitro release kinetics of lamivudine was a suitable fit to the Higuchi model, indicating a diffusion-controlled release with anomalous transport. The obtained microspheres were then subjected to different characterisation studies, including scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). The results of this study clearly indicate that Eudragit-coated pectin microspheres could be the promising controlled release carriers for colon-specific delivery of lamivudine in the presence of rat cecal content.
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Affiliation(s)
- Satheesh Vilas
- Department of Environmental BiotechnologyBharathidasan UniversityTiruchirappalliTamil NaduIndia
| | - Sivasudha Thilagar
- Department of Environmental BiotechnologyBharathidasan UniversityTiruchirappalliTamil NaduIndia
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10
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Release characteristics of gliclazide in a matrix system. In Silico Pharmacol 2021; 9:12. [PMID: 33489711 DOI: 10.1007/s40203-020-00068-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 12/14/2020] [Indexed: 10/22/2022] Open
Abstract
In this study, the release characteristics of gliclazide in a polymeric matrix system, which is used for controlled drug release purposes, are conducted experimentally and numerically. A code using the finite element method predicting the drug release behavior of gliclazide matrix system in an aqueous medium is developed. The parameters having significant importance in drug release kinetics, such as structure factor, the slab's size and shape are varied systematically. The consistent reduction in the solid drug during the dissolution process is evaluated. The numerical data agree well with the experimental results. Therefore, the controlled drug release of gliclazide is accurately modeled by the present numerical code. The results imply that the porosity of the matrix system has the most significant effect on the drug dissolution rate. The reduction in the tablet's diameter and utilization of cylindrical slab geometry increases the speed of the drug dissolution in the aqueous medium.
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Maddiboyina B, Jhawat V, Sivaraman G, Sunnapu O, Nakkala RK, Naik MH, Gulia M. Formulation Development and Characterization of Controlled Release Core-in-cup Matrix Tablets of Venlafaxine HCl. CURRENT DRUG THERAPY 2021. [DOI: 10.2174/1574885515666200331104440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Venlafaxine HCl is a selective serotonin reuptake inhibitor, which is given in
the treatment of depression. The delivery of the drug at a controlled rate can be of great importance for
a prolonged effect.
Objective:
The objective was to prepare and optimize the controlled release core in a cup matrix tablet
of venlafaxine HCl using the combination of hydrophilic and hydrophobic polymers to prolong the
effect with rate controlled drug release.
Methods:
The controlled release core in cup matrix tablets of venlafaxine HCl was prepared using
HPMC K5, K4, K15, HCO, IPA, aerosol, magnesium stearate, hydrogenated castor oil and micro crystalline
cellulose PVOK-900 using wet granulation technique. Total ten formulations with varying concentrations
of polymers were prepared and evaluated for different physicochemical parameters such
FTIR analysis for drug identification. In-vitro drug dissolution study was performed to evaluate the
amount of drug release in 24 hrs, drug release kinetics study was performed to fit the data in zero order,
first order, Hixson-crowell and Higuchi equation to determine the mechanism of drug release and stability
studies for 3 months as observed.
Results:
The results of hardness, thickness, weight variation, friability and drug content study were in
an acceptable range for all formulations. Based on the in vitro dissolution profile, formulation F-9was
considered to be the optimized, extending the release of 98.32% of drug up to 24 hrs. The data fitting
study showed that the optimized formulation followed the zero order release rate kinetics and when
compared with the innovator product (flavix XR), showed better drug release profile.
Conclusion:
The core-in-cup technology has the potential to control the release rate of freely water
soluble drugs for single administration per day by optimization with the combined use of hydrophilic
and hydrophobic polymers.
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Affiliation(s)
- Balaji Maddiboyina
- Department of Pharmaceutical Sciences, Vishwa Bharathi College of Pharmaceutical Sciences, Guntur, A.P, India
| | - Vikas Jhawat
- Department of Pharmacy, School of Medical & Allied Sciences, GD Goenka University, Gurugram, Haryana, India
| | - Gandhi Sivaraman
- Department of Chemistry, Gandhigram Rural Institute Deemed University, Dindigul, Tamilnadu, India
| | - Omprakash Sunnapu
- Department of Pharmaceutical Sciences, Anna University, Dindigul, Tamilnadu, India
| | - Ramya Krishna Nakkala
- Department of Pharmaceutical Sciences, Vishwa Bharathi College of Pharmaceutical Sciences, Guntur, A.P, India
| | - Mudavath Hanuma Naik
- Department of Pharmaceutical Sciences, Vishwa Bharathi College of Pharmaceutical Sciences, Guntur, A.P, India
| | - Monika Gulia
- Department of Pharmacy, School of Medical & Allied Sciences, GD Goenka University, Gurugram, Haryana, India
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Abd-Elazeem OM, Osman NA, El-Shenawy NS. Bioactive Compounds of Seaweeds and Their Effects on Certain Types of Cancer. AVICENNA JOURNAL OF MEDICAL BIOCHEMISTRY 2020; 8:112-119. [DOI: 10.34172/ajmb.2020.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
Cancer is considered as one of the major health problems worldwide. So far, no completely effective method has been found for cancer treatment. Therefore, the rise of using natural products has been proposed as an alternative therapy in this regard. For many years, the seaweed has been a source of many functional bioactive compounds including polysaccharides, polyphenols, pigments, terpenes, and many others. These compounds have shown many bioactivities including anticancer activity against different kinds of cancer. Bioactive compounds obtained from the seaweed have been demonstrated to cause apoptosis in cancer cells and trigger cell cycle arrest with low cytotoxicity against normal cells. In this review, it was attempted to shed light on the anticancer activity of some seaweed-derived bioactive compounds.
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Affiliation(s)
| | - Nehal A.H.k. Osman
- Botany Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Nahla S. El-Shenawy
- Zoology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
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Rahim H, Sadiq A, Ullah R, Bari A, Amin F, Farooq U, Ullah Jan N, Mahmood HM. Formulation of Aceclofenac Tablets Using Nanosuspension as Granulating Agent: An Attempt to Enhance Dissolution Rate and Oral Bioavailability. Int J Nanomedicine 2020; 15:8999-9009. [PMID: 33235448 PMCID: PMC7680606 DOI: 10.2147/ijn.s270746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 10/07/2020] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The aim of the studies was to fabricate aceclofenac (AC) tablets using nanosuspension as granulating fluid to boost its rate of in vitro dissolution and eventually its oral bioavailability. METHODS The optimized nanosuspension with particle size of 112±2.01 nm was fabricated using HPMC 1% (w/v), PVP-K30 1% (w/v) and SLS 0.12% (w/v) at 400 watts of ultrasonication energy for 15 min duration and 3 sec pause. Then, the optimized aceclofenac nanosuspension was used as granulating fluid for aceclofenac tablets formulation. The characterization was performed using Malvern zetasizer, SEM, TEM, DSC and P-XRD. The granules were evaluated for the bulk and tapped densities, Hausner's ratio, angle of repose and their resulted values were found within limit. The prepared tablets were tested for average weight, hardness, friability, disintegration, dissolution and in vivo bioavailability in rabbits. RESULTS The in vitro dissolution data showed the boosted rate of nanosuspension-based tablets compared to the microsuspension-based tablets. The in vivo bioavailability (in rabbits model) of aceclofenac nanosuspension-based tablets (ACN-1, ACN-2) proved an improved absorption as in comparison to the marketed formulation. The Cmax and AUC0→24 of ACN-1 and ACN-2 were 1.53-fold, 1.48-fold and 2.23-fold, 2.0-fold greater than that of the marketed drug, and were 1.74-fold, 1.68-fold and 2.3-fold, 2.21-fold greater in comparison to raw drug. CONCLUSION This boosted in vitro and in vivo bioavailability may be attributed to reduced particle size of aceclofenac nanoformulations used in tablets. Finally, this will result in faster absorption of these fabricated tablets.
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Affiliation(s)
- Haroon Rahim
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Abdul Sadiq
- Department of Pharmacy, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Riaz Ullah
- Department of Pharmacognosy (MAPPRC), College of Pharmacy, King Saud University Riyadh, Riyadh, Saudi Arabia
| | - Ahmed Bari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University Riyadh, Riyadh, Saudi Arabia
| | - Fazli Amin
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Umar Farooq
- Legacy Pharmaceutical (Pvt.) Ltd., Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Naeem Ullah Jan
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Hafiz Majid Mahmood
- Department of Pharmacology, College of Pharmacy, King Saud University Riyadh, Riyadh, Saudi Arabia
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Hussain A, Misbah M, Abbas N, Irfan M, Arshad MS, Shamim R, Bukhari NI, Mahmood F. Design and In Vitro Characterization of Orally Disintegrating Modified Release Tablets of Naproxen Sodium. Turk J Pharm Sci 2020; 17:486-491. [PMID: 33177928 DOI: 10.4274/tjps.galenos.2019.24445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/22/2019] [Indexed: 12/01/2022]
Abstract
OBJECTIVES The aim of this study was to prepare orally disintegrating, slow release tablets of naproxen sodium for prompt onset and sustained action required in many types of acute pain. MATERIALS AND METHODS Tablet formulations containing varying concentrations of croscarmellose sodium (a superdisintegrant) and Soluplus® (as release modifier) were prepared by wet granulation method using a single punch tablet machine. The prepared granules were evaluated for their bulk properties and the tablets were evaluated for hardness, disintegration time, and drug release profiles. RESULTS The results showed that the granules so prepared have good flow and compressional properties. A disintegration time of tablets <30 s was achieved by selecting an optimum concentration of croscarmellose sodium. The drug release from the tablets was sustained for 2 h by incorporating a suitable amount of Soluplus®. CONCLUSION This study examined the use of Soluplus® (a novel solubilizer) for the first time as a release modifier of API from tablets.
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Affiliation(s)
- Amjad Hussain
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Maham Misbah
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Nasir Abbas
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Muhammad Irfan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, GC University Faisalabad, Pakistan
| | | | - Rahat Shamim
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | | | - Faisal Mahmood
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
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Vanza JD, Patel RB, Dave RR, Patel MR. Polyethylene oxide and its controlled release properties in hydrophilic matrix tablets for oral administration. Pharm Dev Technol 2020; 25:1169-1187. [PMID: 32772604 DOI: 10.1080/10837450.2020.1808015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Polymers are excipients that modify the rate of drug release from pharmaceutical dosage forms. Hydrophilic polymer-based controlled drug delivery system is more advantageous as compared to the conventional delivery system as it reduces the dosing frequency, improves therapeutic efficacy, reduces side-effects, and probably enhances patient compliance. Polyethylene oxide (PEO), a nonionic hydrophilic polymer, is one of the most widely used polymers for extending the drug release. This review mainly focuses on the PEO marketed by, but not limited to, The Dow Chemical Company under the trade name of POLYOXTM. It is commercially available polyethylene oxide polymer existing in various molecular weight and viscosity grades depending upon the application. This study essentially discusses chemistry, physicochemical properties, and the impact of formulation and processing variables on the release of drug from hydrophilic PEO matrix tablets. Moreover, it also summarizes the stability, patents, and regulatory perspectives of POLYOX that can further influence the future developments of controlled release dosage forms.
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Affiliation(s)
- Jigar D Vanza
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), Changa, India
| | - Rashmin B Patel
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), Changa, India
| | - Richa R Dave
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), Changa, India
| | - Mrunali R Patel
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), Changa, India
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Karthikeyan M, Deepa MK, Bassim E, Rahna CS, Raj KRS. Investigation of Kinetic Drug Release Characteristics and In Vitro Evaluation of Sustained-Release Matrix Tablets of a Selective COX-2 Inhibitor for Rheumatic Diseases. J Pharm Innov 2020. [DOI: 10.1007/s12247-020-09459-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Sofi HS, Abdal-Hay A, Ivanovski S, Zhang YS, Sheikh FA. Electrospun nanofibers for the delivery of active drugs through nasal, oral and vaginal mucosa: Current status and future perspectives. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110756. [PMID: 32279775 DOI: 10.1016/j.msec.2020.110756] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/04/2019] [Accepted: 02/15/2020] [Indexed: 12/26/2022]
Abstract
Transmucosal surfaces bypass many limitations associated with conventional drug delivery (oral and parenteral routes), such as poor absorption rate, enzymatic activity, acidic environment and first-pass metabolism occurring inside the liver. However, these surfaces have several disadvantages such as poor retention time, narrow absorption window and continuous washout of the drug by the surrounding fluids. Electrospun nanofibers with their unique surface properties and encapsulation efficiency may act as novel drug carriers to overcome the challenges associated with conventional drug delivery routes, so as to achieve desired therapeutic responses. This review article provides detailed information regarding the challenges faced in the mucosal delivery of drugs, and the use of nanofiber systems as an alternative to deliver drugs to the systemic circulation, as well as local drug administration. The physiological and anatomical features of different types of mucosal surfaces and current challenges are systematically discussed. We also address future considerations in the area of transmucosal delivery of some important drugs.
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Affiliation(s)
- Hasham S Sofi
- Department of Nanotechnology, University of Kashmir, Hazratbal, Srinagar 190006, Jammu and Kashmir, India
| | - Abdalla Abdal-Hay
- The University of Queensland, School of Dentistry, Oral Health Centre Herston, 288 Herston Road, Herston QLD 4006, Australia; Department of Engineering Materials and Mechanical Design, Faculty of Engineering, South Valley University, Qena 83523, Egypt
| | - Saso Ivanovski
- The University of Queensland, School of Dentistry, Oral Health Centre Herston, 288 Herston Road, Herston QLD 4006, Australia
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Faheem A Sheikh
- Department of Nanotechnology, University of Kashmir, Hazratbal, Srinagar 190006, Jammu and Kashmir, India.
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18
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Wang L, Liu X. Sustained Release Technology and Its Application in Environmental Remediation: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E2153. [PMID: 31216688 PMCID: PMC6617011 DOI: 10.3390/ijerph16122153] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/16/2019] [Accepted: 06/16/2019] [Indexed: 01/05/2023]
Abstract
Sustained release technology is a class of technology characterized by slowly-releasing specific active substances into a target medium to keep a certain concentration in the system within valid time. As a new of type technology, it has been extensively applied to medicine, chemical engineering, agriculture, environmental protection, etc. The principles and classification of sustained release technologies, as well as typical preparation methods of sustained release agents, were summarized in this paper; by introducing applied research progress of sustained release technologies into environmental fields like rainwater purification, sewage/drinking water treatment, and soil and atmosphere remediation, application features of these sustained release technologies were evaluated, and their application prospect in environmental remediation, especially in water treatment, was predicted.
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Affiliation(s)
- Lili Wang
- Environmental Engineering, Jiyang College of Zhejiang A & F University, Zhuji 311800, China.
| | - Xiaowei Liu
- Institute of Water Resources & Ocean Engineering, Ocean College, Zhejiang University, Hangzhou 310058, China.
- Institute of Municipal Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China.
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Tunpanich P, Limpongsa E, Pongjanyakul T, Sripanidkulchai B, Jaipakdee N. Mucoadhesive sustained-release tablets for vaginal delivery of Curcuma comosa extracts: Preparation and characterization. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.03.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Highly Soluble Drugs Directly Granulated by Water Dispersions of Insoluble Eudragit® Polymers as a Part of Hypromellose K100M Matrix Systems. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8043415. [PMID: 30949510 PMCID: PMC6425467 DOI: 10.1155/2019/8043415] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/04/2019] [Accepted: 02/13/2019] [Indexed: 01/13/2023]
Abstract
The aim of the present study was to investigate the suitability of insoluble Eudragit® water dispersions (NE, NM, RL, and RS) for direct high-shear granulation of very soluble levetiracetam in order to decrease its burst effect from HPMC K100M matrices. The process characteristics, ss-NMR analysis, in vitro dissolution behavior, drug release mechanism and kinetics, texture profile analysis of the gel layer, and PCA analysis were explored. An application of water dispersions directly on levetiracetam was feasible only in a multistep process. All prepared formulations exhibited a 12-hour sustained release profile characterized by a reduced burst effect in a concentration-dependent manner. No effect on swelling extent of HPMC K100M was observed in the presence of Eudragit®. Contrary, higher rigidity of formed gel layer was observed using combination of HPMC and Eudragit®. Not only the type and concentration of Eudragit®, but also the presence of the surfactant in water dispersions played a key role in the dissolution characteristics. The dissolution profile close to zero-order kinetic was achieved from the sample containing levetiracetam directly granulated by the water dispersion of Eudragit® NE (5% of solid polymer per tablet) with a relatively high amount of surfactant nonoxynol 100 (1.5%). The initial burst release of drug was reduced to 8.04% in 30 min (a 64.2% decrease) while the total amount of the released drug was retained (97.02%).
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Physicochemical characterization of naproxen microcrystals for colon specific pulsatile drug delivery designed using pulsincap technique. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2019. [DOI: 10.1007/s40005-019-00425-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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SAMIE M, BASHIR S, ABBAS J, KHAN S, AMAN N, JAN H, MUHAMMAD N. Design, Formulation and In Vitro Evaluation of Sustained-release Tablet Formulations of Levosulpiride. Turk J Pharm Sci 2018; 15:309-318. [PMID: 32454675 PMCID: PMC7227831 DOI: 10.4274/tjps.29200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/02/2017] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Levosulpiride is a widely used gastroprokinetic agent in the treatment of various gastric disorders; however, its short half-life and increased dosage frequency leads to non-compliance and possible adverse effects. The prime objective of the current study was to develop a sustained-release formulation of Levosulpiride incorporating bioresorbable cellulose derivatives. MATERIALS AND METHODS Sustained-release formulations of Levosulpiride were prepared through direct compression using various cellulose derivatives such as CMC sodium, HPC, and HPMC in different polymer-to-drug weight ratios as release-modifying polymers. The powder blends and compressed tablets were then subjected to pre-compressional and post-compressional evaluation, as well as FTIR analysis. In vitro release studies were performed for all formulations of the model drug in buffer solution of pH 6.8 at a wave length of 214 nm by a UV-visible light spectrophotometer. RESULTS The FTIR results confirmed that the interaction between components was physical, and from the different kinetic models data, the release profile was best expressed by the Higuchi model because the results showed high linearity. The results also showed formulation F9 to be the ideal one among the developed formulations, exhibiting sustained- release behavior. CONCLUSION Levosulpiride sustained-release matrices were prepared successfully using CMC sodium, HPC, and HPMC as the release-retarding polymer/carrier.
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Affiliation(s)
- Muhammad SAMIE
- COMSATS Institute of Information Technology, Department of Pharmacy, Abbottabad, Pakistan
| | - Sajid BASHIR
- Sargodha University, Faculty of Pharmacy, Sargodha, Pakistan
| | - Jabbar ABBAS
- People’s University of Medical and Health Sciences for Women, Institute of Pharmaceutical Sciences, Shaheed Benazir Abad, Pakistan
| | - Samiullah KHAN
- COMSATS Institute of Information Technology, Department of Pharmacy, Abbottabad, Pakistan
| | - Nargis AMAN
- COMSATS Institute of Information Technology, Department of Pharmacy, Abbottabad, Pakistan
| | - Habibullah JAN
- Abdul Wali Khan University Mardan, Department of Pharmacy, Mardan, Pakistan
| | - Naveed MUHAMMAD
- Abdul Wali Khan University Mardan, Department of Pharmacy, Mardan, Pakistan
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Naiserová M, Kubová K, Vysloužil J, Pavloková S, Vetchý D, Urbanová M, Brus J, Vysloužil J, Kulich P. Investigation of Dissolution Behavior HPMC/Eudragit ®/Magnesium Aluminometasilicate Oral Matrices Based on NMR Solid-State Spectroscopy and Dynamic Characteristics of Gel Layer. AAPS PharmSciTech 2018; 19:681-692. [PMID: 28971441 DOI: 10.1208/s12249-017-0870-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 08/24/2017] [Indexed: 12/11/2022] Open
Abstract
Burst drug release is often considered a negative phenomenon resulting in unexpected toxicity or tissue irritation. Optimal release of a highly soluble active pharmaceutical ingredient (API) from hypromellose (HPMC) matrices is technologically impossible; therefore, a combination of polymers is required for burst effect reduction. Promising variant could be seen in combination of HPMC and insoluble Eudragits® as water dispersions. These can be applied only on API/insoluble filler mixture as over-wetting prevention. The main hurdle is a limited water absorption capacity (WAC) of filler. Therefore, the object of this study was to investigate the dissolution behavior of levetiracetam from HPMC/Eudragit®NE matrices using magnesium aluminometasilicate (Neusilin® US2) as filler with excellent WAC. Part of this study was also to assess influence of thermal treatment on quality parameters of matrices. The use of Neusilin® allowed the application of Eudragit® dispersion to API/Neusilin® mixture in one step during high-shear wet granulation. HPMC was added extragranularly. Obtained matrices were investigated for qualitative characteristics, NMR solid-state spectroscopy (ssNMR), gel layer dynamic parameters, SEM, and principal component analysis (PCA). Decrease in burst effect (max. of 33.6%) and dissolution rate, increase in fitting to zero-order kinetics, and paradoxical reduction in gel layer thickness were observed with rising Eudragit® NE concentration. The explanation was done by ssNMR, which clearly showed a significant reduction of the API particle size (150-500 nm) in granules as effect of surfactant present in dispersion in dependence on Eudragit®NE amount. This change in API particle size resulted in a significantly larger interface between these two entities. Based on ANOVA and PCA, thermal treatment was not revealed as a useful procedure for this system.
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Ershadul Haque SK, Sheela A. Biocompatible interpolymer complex matrix tablets - an oral sustained release class-III antidiabetic drug. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1757-899x/263/2/022030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Park D, Hong Z, Kim JC. Gold nanoparticles–loaded cinnamoyl pluronic F-127/cinnamoyl alginate microparticles prepared by a spray-drying method. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1263955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Danbi Park
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon-do, Republic of Korea
| | - Zhang Hong
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon-do, Republic of Korea
| | - Jin-Chul Kim
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon-do, Republic of Korea
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26
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Rane MM, Bajaj A. Development and optimisation of novel oral formulation of an opioid analgesic using central composite design. COGENT MEDICINE 2017. [DOI: 10.1080/2331205x.2017.1326210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Meenal M. Rane
- Pharmaceutics Department, SVKM’s Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, India
| | - Amrita Bajaj
- Pharmaceutics Department, SVKM’s Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, India
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Lipids bearing extruded-spheronized pellets for extended release of poorly soluble antiemetic agent-Meclizine HCl. Lipids Health Dis 2017; 16:75. [PMID: 28403892 PMCID: PMC5389104 DOI: 10.1186/s12944-017-0466-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 04/02/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Antiemetic agent Meclizine HCl, widely prescribed in vertigo, is available only in immediate release dosage forms. The approved therapeutic dose and shorter elimination half-life make Meclizine HCl a potential candidate to be formulated in extended release dosage form. This study was aimed to develop extended release Meclizine HCl pellets by extrusion spheronization using natural and synthetic lipids. Influence of lipid type, drug/lipid ratio and combinations of different lipids on drug release and sphericity of pellets were evaluated. METHODS Thirty two formulations were prepared with four different lipids, Glyceryl monostearate (Geleol®), Glyceryl palmitostearate (Precirol®), Glyceryl behenate (Compritol®) and Carnauba wax, utilized either alone or in combinations of drug/lipid ratio of 1:0.5-1:3. Dissolution studies were performed at variable pH and release kinetics were analyzed. Fourier transform infrared spectroscopy was conducted and no drug lipid interaction was found. RESULTS Sphericity indicated by shape factor (eR) varied with type and concentration of lipids: Geleol® (eR = 0.891-0.997), Precirol® (eR = 0.611-0.743), Compritol® (eR = 0.665-0.729) and Carnauba wax (eR = 0.499-0.551). Highly spherical pellets were obtained with Geleol® (Aspect ratio = 1.005-1.052) whereas irregularly shaped pellets were formed using Carnauba wax (Aspect ratio = 1.153-1.309). Drug release was effectively controlled by three different combinations of lipids: (i) Geleol® and Compritol®, (ii) Geleol® and Carnauba wax and (iii) Geleol®, Compritol® and Carnauba wax. Scanning electron microscopy of Compritol® pellets showed smooth surface with pores, whereas, irregular rough surface with hollow depressions was observed in Carnauba wax pellets. Energy dispersive spectroscopy indicated elemental composition of lipid matrix pellets. Kinetics of (i) Geleol® and Compritol® pellets, explained by Korsmeyer-Peppas (R2 = 0.978-0.993) indicated non-Fickian diffusion (n = 0.519-0.597). Combinations of (ii) Geleol® and Carnauba wax and (iii) Geleol®, Compritol® and Carnauba wax pellets followed Zero-order (R2 = 0.991-0.995). Similarity test was performed using combination of Geleol® and Compritol® (i) as a reference. CONCLUSIONS Matrices for the extended release of Meclizine HCl from extruded-spheronized pellets were successfully formed by using three lipids (Geleol®, Compritol® and Carnauba wax) in different combinations. The encapsulated pellets of Meclizine HCl can be effectively used for treatment of motion sickness, nausea and vertigo for extended period of time.
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Hanif M, Abbas G. pH-responsive alginate-pectin polymeric rafts and their characterization. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21808] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muhammad Hanif
- Faculty of Pharmacy; Bahauddin Zakariya University Multan; Multan Pakistan
| | - Ghulam Abbas
- Faculty of Pharmacy; Bahauddin Zakariya University Multan; Multan Pakistan
- Faculty of Pharmaceutical Sciences; Government College University Faisalabad; Faisalabad Pakistan
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Kubova K, Peček D, Hasserová K, Doležel P, Pavelková M, Vyslouzil J, Muselík J, Vetchy D. The influence of thermal treatment and type of insoluble poly(meth)acrylates on dissolution behavior of very soluble drug from hypromellose matrix tablets evaluated by multivariate data analysis. Pharm Dev Technol 2017; 22:206-217. [PMID: 28058866 DOI: 10.1080/10837450.2016.1193191] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Hypromellose matrices exhibit extended burst effect immediately after contact with aqueous medium, especially when a water-soluble drug is incorporated. The objective of this study was to reduce burst effect and maintain complete dissolution of a very soluble levetiracetam over 12 h period from hypromellose K4M matrices to obtain zero-order kinetics. Desired changes were achieved by applying water dispersions of insoluble Eudragits® (NE, NM, RL, RS) as a granulation liquid to the drug/microcrystalline cellulose mixture during high-shear granulation (non-thermal treated set) and consequently by thermally treating granules or final tablets (TT), respectively. Applying Eudragit® water dispersions to the drug/microcrystalline cellulose mixture was recognized as an effective method of significantly reducing the burst release (25.4-33.7%) of levetiracetam in comparison with a reference sample without Eudragit®. Multivariate data analysis showed that the addition of Eudragit® reduced burst effect, increased fitting with zero-order kinetics, and supported matrix erosion as the supplementary mechanism to predominant diffusion. Moreover, resulting PCA sub-model revealed the addition of Eudragit® RL and thermal treatment of tablets to be the most suitable method of all. For a 12 h dissolution profile, characterized by low burst effect and drug release close to 100% at the 12th hour, sample RL_TT was the most suitable.
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Affiliation(s)
- Katerina Kubova
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - Daniel Peček
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - Kristýna Hasserová
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - Petr Doležel
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - Miroslava Pavelková
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - Jakub Vyslouzil
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - Jan Muselík
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
| | - David Vetchy
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences Brno , Brno , Czech Republic
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Development, in-vitro and in-vivo characterization of gelatin nanoparticles for delivery of an anti-inflammatory drug. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Guerra-Ponce WL, Gracia-Vásquez SL, González-Barranco P, Camacho-Mora IA, Gracia-Vásquez YA, Orozco-Beltrán E, Felton LA. In vitro evaluation of sustained released matrix tablets containing ibuprofen: a model poorly water-soluble drug. BRAZ J PHARM SCI 2016. [DOI: 10.1590/s1984-82502016000400020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Mahdizadeh Barzoki Z, Emam-Djomeh Z, Mortazavian E, Akbar Moosavi-Movahedi A, Rafiee Tehrani M. Formulation, in vitro evaluation and kinetic analysis of chitosan-gelatin bilayer muco-adhesive buccal patches of insulin nanoparticles. J Microencapsul 2016; 33:613-624. [PMID: 27606816 DOI: 10.1080/02652048.2016.1234513] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The present study was performed to optimise the formulation of a muco-adhesive buccal patch for insulin nanoparticles (NPs) delivery. Insulin NPs were synthesised by an ionic gelation technique using N-di methyl ethyl chitosan cysteine (DMEC-Cys) as permeation enhancer biopolymer, tripolyphosphate (TPP) and insulin. Buccal patches were developed by solvent-casting technique using chitosan and gelatine as muco-adhesive polymers. Optimised patches were embedded with 3 mg of insulin-loaded NPs with a homogeneous distribution of NPs in the muco-adhesive matrix, which displayed adequate physico-mechanical properties. The drug release characteristics, release mechanism and kinetics were investigated. Data fitting to Peppas equation with a correlation coefficient indicated that the mechanism of drug release followed an anomalous transport that means drug release was afforded through drug diffusion along with polymer erosion. In vitro drug release, release kinetics, physical and mechanical studies for all patch formulations reflected the ideal characteristics of this buccal patch for the delivery of insulin NPs.
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Affiliation(s)
- Zahra Mahdizadeh Barzoki
- a Transfer Phenomena Laboratory (TPL), Department of Food Science, Technology and Engineering, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources , University of Tehran , Karadj , Iran
| | - Zahra Emam-Djomeh
- a Transfer Phenomena Laboratory (TPL), Department of Food Science, Technology and Engineering, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources , University of Tehran , Karadj , Iran.,b Center of Excellence for Application of Modern Technologies for Producing Functional Foods and Drinks , Tehran , Iran
| | - Elaheh Mortazavian
- c Department of Pharmaceutics, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
| | | | - M Rafiee Tehrani
- c Department of Pharmaceutics, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
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Gaikwad SS, Chafle SA, Morris PS, Avari JG. Development and evaluation of bilayer tablets of combination of antibiotics for the treatment of sexually transmitted disease. BRAZ J PHARM SCI 2016. [DOI: 10.1590/s1984-82502016000300020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Wu J, Jiang W, Tian R, Shen Y, Jiang W. Facile synthesis of magnetic-/pH-responsive hydrogel beads based on Fe3O4 nanoparticles and chitosan hydrogel as MTX carriers for controlled drug release. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:1553-68. [PMID: 27464586 DOI: 10.1080/09205063.2016.1218212] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In the present study, methotrexate (MTX)-encapsulated magnetic-/pH-responsive hydrogel beads based on Fe3O4 nanoparticles and chitosan were successfully prepared through a one-step gelation process, which is a very facile, economic and environmentally friendly route. The developed hydrogel beads exhibited homogeneous porous structure and super-paramagnetic responsibility. MTX can be successfully encapsulated into magnetic chitosan hydrogel beads, and the drug encapsulation efficiency (%) and encapsulation content (%) were 93.8 and 6.28%, respectively. In addition, the drug release studies in vitro indicated that the MTX-encapsulated magnetic chitosan hydrogel beads had excellent pH-sensitivity, 90.6% MTX was released from the magnetic chitosan hydrogel beads within 48 h at pH 4.0. WST-1 assays in human liver hepatocellular carcinoma cells (HepG2) demonstrated that the MTX-encapsulated magnetic chitosan hydrogel beads had good cytocompatibility and high anti-tumor activity. Therefore, our results revealed that the MTX-encapsulated magnetic chitosan hydrogel beads would be a competitive candidate for controlled drug release in the area of targeted cancer therapy in the near future.
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Affiliation(s)
- Juan Wu
- a National Special Superfine Powder Engineering Research Center , Nanjing University of Science and Technology , Nanjing , China
| | - Wei Jiang
- a National Special Superfine Powder Engineering Research Center , Nanjing University of Science and Technology , Nanjing , China
| | - Renbing Tian
- a National Special Superfine Powder Engineering Research Center , Nanjing University of Science and Technology , Nanjing , China
| | - Yewen Shen
- a National Special Superfine Powder Engineering Research Center , Nanjing University of Science and Technology , Nanjing , China
| | - Wei Jiang
- a National Special Superfine Powder Engineering Research Center , Nanjing University of Science and Technology , Nanjing , China
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Song SH, Chae BR, Sohn SI, Yeom DW, Son HY, Kim JH, Kim SR, Lee SG, Choi YW. Formulation of controlled-release pelubiprofen tablet using Kollidon(®) SR. Int J Pharm 2016; 511:864-75. [PMID: 27492018 DOI: 10.1016/j.ijpharm.2016.07.074] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/06/2016] [Accepted: 07/29/2016] [Indexed: 11/26/2022]
Abstract
To develop a matrix-type, controlled-release tablet formulation of pelubiprofen (PLB), a recently developed non-steroidal anti-inflammatory drug, polymeric excipients including hypromellose, hydroxypropylcellulose, Eudragit(®) RS PO, and Kollidon(®) SR were screened. A formulation containing 12.4% w/w Kollidon(®) SR (K2 tablet) was found to be the most promising and stable for 6 months in an accelerated stability test. PLB release from K2 tablet was limited at pH 1.2, but gradually increased at pH 6.8 with a surface-erosion, resulting in the best fit to Hixson-Crowell equation. Comparative human PK studies were performed using a randomized, 2-way crossover design. LC-MS/MS assay revealed that the plasma level of PLB-transOH, an active metabolite, was significantly higher than that of PLB. After multiple dosing of immediate-release tablet (R) and K2 tablet (T), the T/R ratios of AUC were 1.02 and 1.04 for PLB and PLB-transOH, respectively. Level A in vitro-in vivo correlation was established for the K2 tablet-administered group. PK profile of PLB-transOH was not influenced by food intake, while that of PLB was altered. We suggest that K2 tablet could be administered twice a day without being affected by food intake, thereby enhancing patient compliance.
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Affiliation(s)
- Seh Hyon Song
- Daewon Pharm. Co., Ltd., 520 Cheonhodae-ro, Gwangjin-gu, Seoul 04994, Republic of Korea.
| | - Bo Ram Chae
- Daewon Pharm. Co., Ltd., 520 Cheonhodae-ro, Gwangjin-gu, Seoul 04994, Republic of Korea.
| | - Se Il Sohn
- Daewon Pharm. Co., Ltd., 520 Cheonhodae-ro, Gwangjin-gu, Seoul 04994, Republic of Korea.
| | - Dong Woo Yeom
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Ho Yong Son
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Jin Han Kim
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Sung Rae Kim
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Sang Gon Lee
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Young Wook Choi
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
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Kumar P, Behl G, Sikka M, Chhikara A, Chopra M. Poly(ethylene glycol)-co-methacrylamide-co-acrylic acid based nanogels for delivery of doxorubicin. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:1413-33. [PMID: 27383582 DOI: 10.1080/09205063.2016.1207588] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Polymeric nanogels have been widely explored for their potential application as delivery carriers for cancer therapeutics. The ability of nanogels to encapsulate therapeutics by simple diffusion mechanism and the ease of their fabrication to impart target specificity in addition to their ability to get internalized into target cells make them good candidates for drug delivery. The present study aims to investigate the applicability of poly(ethylene glycol)-co-methacrylamide-co-acrylic acid (PMA)-based nanogels as a viable option for the delivery of doxorubicin (DOX). The nanogels were synthesized by free radical polymerization in an inverse mini-emulsion and characterized by nuclear magnetic resonance spectroscopy ((1)H NMR), Fourier transform infrared spectroscopy, dynamic light scattering, transmission electron microscopy (TEM), X-ray diffraction and differential scanning calorimetry. DOX was physically incorporated into the nanogels (PMA-DOX) and the mechanism of its in vitro release was studied. TEM experiment revealed spherical morphology of nanogels and the hydrodynamic diameter of the neat nanogels was in the range of 160 ± 46.95 nm. The size of the nanogels increased from 235.1 ± 28.46 to 403.7 ± 89.89 nm with the increase in drug loading capacity from 4.68 ± 0.03 to 13.71 ± 0.01%. The sustained release of DOX was observed upto 80 h and the release rate decreased with increased loading capacity following anomalous release mechanism as indicated by the value of diffusion exponent (n = 0.64-0.75) obtained from Korsmeyer-Peppas equation. Further, cytotoxicity evaluation of PMA-DOX nanogels on HeLa cells resulted in relatively higher efficacy (IC50~5.88 μg/mL) as compared to free DOX (IC50~7.24 μg/mL) thus demonstrating that the preparation is potentially a promising drug delivery carrier.
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Affiliation(s)
- Parveen Kumar
- a Department of Chemistry , Dyal Singh College, University of Delhi , New Delhi , India
| | - Gautam Behl
- a Department of Chemistry , Dyal Singh College, University of Delhi , New Delhi , India.,b College of Pharmacy and Pharmaceutical Sciences , Florida A&M University , Tallahassee , FL , USA
| | - Manisha Sikka
- c Dr. B. R. Ambedkar Center for Biomedical Research , University of Delhi , New Delhi , India
| | - Aruna Chhikara
- a Department of Chemistry , Dyal Singh College, University of Delhi , New Delhi , India
| | - Madhu Chopra
- c Dr. B. R. Ambedkar Center for Biomedical Research , University of Delhi , New Delhi , India
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Ibrahim HK, Fahmy RH. Localized rosuvastatin via implantable bioerodible sponge and its potential role in augmenting bone healing and regeneration. Drug Deliv 2016; 23:3181-3192. [PMID: 26942653 DOI: 10.3109/10717544.2016.1160458] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE Statins proved potential bone healing properties. Rosuvastatin is a synthetic, hydrophilic, potent and highly efficacious statin. In the current work, an attempt was investigated to develop, evaluate various bioerodible composite sponges enclosing rosuvastatin and explore their potential in augmenting bone healing and regeneration. METHOD Twelve lyophilized sponge formulae were prepared adapting a 41.31 full factorial design. Xanthan gum, polycarbophil, Carbopol® and sodium alginate were investigated as anionic polymers, each at three chitosan:anionic polymer ratios (1:3, 1:1, 3:1). The formula of choice was implanted in fractured rat femora. RESULTS Visual and microscopic examination showed flexible homogenous porous structures with considerable bending ability. Polyelectrolyte complex formation was proved by DSC and FT-IR for all chitosan/anionic combinations except with xanthan gum where chitosan probably bound to the drug rather than xanthan gum. Statistical analysis proved that anionic polymer type and chitosan: polymer ratio, as well as, their interactions, exhibited significant effects on the release parameters at p ≤ 0.05. The optimum chitosan/anionic polymer complexation ratios were 3:1 for polycarbophil and 1:1 for Carbopol and alginate. The release at these ratios followed Fiction diffusion while other ratios had anomalous diffusion. Imwitor® 900K and HPMC K100M were added as release retarardants for further release optimization. The formula of choice was implanted in fractured rat femora. Histopathological examination revealed advanced stages of healing in treated femora compared to control ones. CONCLUSION Biodegradable sponges for local rosuvastatin delivery proved significantly enhanced wound healing and regeneration properties to fractured bones.
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Affiliation(s)
- Howida Kamal Ibrahim
- a Department of Pharmaceutics and Industrial Pharmacy , Faculty of Pharmacy, Cairo University , Cairo , Egypt and
| | - Rania Hassan Fahmy
- a Department of Pharmaceutics and Industrial Pharmacy , Faculty of Pharmacy, Cairo University , Cairo , Egypt and.,b Department of Pharmaceutics , Faculty of Pharmacy, Ahram Canadian University , Cairo , Egypt
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Behl G, Iqbal J, O'Reilly NJ, McLoughlin P, Fitzhenry L. Synthesis and Characterization of Poly(2-hydroxyethylmethacrylate) Contact Lenses Containing Chitosan Nanoparticles as an Ocular Delivery System for Dexamethasone Sodium Phosphate. Pharm Res 2016; 33:1638-48. [PMID: 26964548 DOI: 10.1007/s11095-016-1903-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 03/04/2016] [Indexed: 02/05/2023]
Abstract
PURPOSE Dexamethasone sodium phosphate (DXP) is an anti-inflammatory drug commonly used to treat acute and chronic ocular diseases. It is routinely delivered using eye-drops, where typically only 5% of the drug penetrates the corneal epithelium. The bioavailability of such ophthalmic drugs can be enhanced significantly using contact lenses incorporating drug-loaded nanoparticles (NPs). METHODS The mechanism of release from chitosan NPs (CS-NPs), synthesized by ionic gelation, was studied in vitro. The DXP loaded CS-NPs were subsequently entrapped in contact lenses and the optical and drug-release properties were assessed. RESULTS DXP release from CS-NPs followed diffusion and swelling controlled mechanisms, with an additional proposed impact from the electrostatic interaction between the drug and the CS-NPs. The release rate was found to increase with an increase in drug loading from 20 to 50 wt%. However, an inverse effect was observed when initial loading increased to 100 wt%. NP-laden lenses were optically clear (95-98% transmittance relative to the neat contact lens) and demonstrated sustained DXP release, with approximately 55.73% released in 22 days. CONCLUSIONS The release profile indicated that drug levels were within the therapeutic requirement for anti-inflammatory use. These results suggest that these materials might be a promising candidate for the delivery of DXP and other important ophthalmic therapeutics.
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Affiliation(s)
- Gautam Behl
- Pharmaceutical and Molecular Biotechnology Research Centre, Department of Science, School of Science and Computing, Cork Road, Waterford, Ireland
| | - Javed Iqbal
- Pharmaceutical and Molecular Biotechnology Research Centre, Department of Science, School of Science and Computing, Cork Road, Waterford, Ireland
| | - Niall J O'Reilly
- Pharmaceutical and Molecular Biotechnology Research Centre, Department of Science, School of Science and Computing, Cork Road, Waterford, Ireland
| | - Peter McLoughlin
- Pharmaceutical and Molecular Biotechnology Research Centre, Department of Science, School of Science and Computing, Cork Road, Waterford, Ireland
| | - Laurence Fitzhenry
- Pharmaceutical and Molecular Biotechnology Research Centre, Department of Science, School of Science and Computing, Cork Road, Waterford, Ireland.
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Hussain A, Mumtaz AM, Arshad MS, Abbas N, Latif A, Shamim R, Bukhari NI, Hussain K. Effect of cellulose acetate phthalate and polyethylene glycol on physical properties and release of theophylline from microcapsules. BRAZ J PHARM SCI 2016. [DOI: 10.1590/s1984-82502016000100004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The present study describes the development of theophylline microcapsules by a non-solvent addition method and the effect of plasticizer addition on microencapsulation. The release was studied in distilled water and the data were analysed by various mathematical models for determining the mechanism of release. Prepared microcapsules were found to be spherical, free flowing and having more than 80% entrapped drug. The polymer - cellulose acetate phthalate and plasticizer - polyethylene glycol was considered to be affecting the properties of microcapsules including drug release (time for 50% drug release, T50). The formulation with the highest proportion of polymer and without plasticizer (F3) showed the slowest release with T50 = 4.3 h, while the formulation with lower proportion of polymer and 20% (w/w) plasticizer (F13 &14) showed the fastest release of drug with T50 values of 1.2 h and 1.3 h, respectively. The drug release from most of the formulations was found to be following Higuchi model. It is concluded from the results of the present study that cellulose acetate phthalate significantly affects the sustained release of the drug in water, whereas the addition of polyethylene glycol slightly enhances the drug release.
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Saleem MN, Idris M. Formulation Design and Development of a Unani Transdermal Patch for Antiemetic Therapy and Its Pharmaceutical Evaluation. SCIENTIFICA 2016; 2016:7602347. [PMID: 27403377 PMCID: PMC4925991 DOI: 10.1155/2016/7602347] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 03/30/2016] [Accepted: 05/04/2016] [Indexed: 05/22/2023]
Abstract
The Transdermal Drug Delivery System (TDDS) is one of the novel routes for systemic delivery of drugs through intact skin. A transdermal patch (TP) is a medicated patch that is placed on skin for delivery of medication through skin into the blood stream. The aim of present study was to formulate and evaluate a Unani transdermal patch that could be used for antiemetic therapy. The incorporation of Unani ingredients, namely, Khardal (Brassica nigra), Zanjabeel (Zingiber officinale), Podina (Mentha arvensis), and Sirka (Vinegar) were envisaged. The TP was prepared by solvent evaporation technique and was evaluated for organoleptic characteristics and other physicochemical properties, such as thickness, weight uniformity, folding endurance, moisture content, drug content, and tolerability and acceptability of patch. The in vitro permeation study of the patch was carried out through Franz diffusion cell using egg shell membrane as barrier membrane. Phosphate buffer pH 7.4 was used as dissolution medium and the temperature was maintained at 37 ± 1°C. The in vitro permeation study of the prepared TP indicated a time dependent increase in drug release throughout the study. The percentage of cumulative drug release was found to be 77.38% in 24 hours. The study shows a new approach to work in Unani pharmaceutics.
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Affiliation(s)
- Mohd Nauman Saleem
- Post Graduate Department of Ilm-us-Saidla, Ayurvedic & Unani Tibbia College, Karol Bagh, New Delhi 110005, India
- *Mohd Nauman Saleem:
| | - Mohammad Idris
- Departments of Ilm-us-Saidla & Advia, Ayurvedic & Unani Tibbia College, Karol Bagh, New Delhi 110005, India
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Prabhu P, Dubey A, Parth V, Ghate V. Investigation of hydrogel membranes containing combination of gentamicin and dexamethasone for ocular delivery. Int J Pharm Investig 2015; 5:214-25. [PMID: 26682192 PMCID: PMC4675003 DOI: 10.4103/2230-973x.167684] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Background: Hydrogel is a cross-linked network of polymers. Water penetrates these network causing swelling and giving the hydrogel a soft and rubbery consistency and there by maintaining the integrity of the membrane. Due to the drawback of conventional therapy for ocular delivery, hydrogel membranes containing the combination of gentamicin (GT) sulfate and dexamethasone (DX) were formulated for the treatment of conjunctivitis. The objective of this study was to formulate and evaluate the hydrogel membranes containing the combination of GT and DX for the treatment of conjunctivitis. Materials and Methods: In the present investigation, hydrogel membranes were prepared by using polymers such as gelatin, polyvinyl alcohol, and chitosan, which were cross-linked using physical/chemical methods. Results: The cross-linking of the membranes was confirmed by Fourier transform infra-red studies. The pH of the membranes ranged from 7.19 to 7.45 and drug content ranged from 69.82% to 89.19%. The hydrogels showed a considerably good swelling ratio ranging from 22.5% to 365.56%. The in vitro drug release study showed that there was a slow and sustained release of the drug from the membranes which were sufficiently cross-linked and followed zero order release. In vivo studies showed that the severity of conjunctivitis was remarkably lowered at day 3 with hydrogel membrane compared to marketed eye drops. Results of unpaired t-test of significance between two groups indicated that the hydrogel membrane showed a better response in the treatment of conjunctivitis compared to the marketed products. Stability studies proved that the formulations could be stable when stored at room temperature. Conclusion: Results of the study indicated that it is possible to develop a safe and physiologically effective hydrogels which are patient compliant.
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Affiliation(s)
- Prabhakara Prabhu
- Department of Pharmaceutics, Shree Devi College of Pharmacy, Mangalore, Karnataka, India
| | - Akhilesh Dubey
- Department of Pharmaceutics, Shree Devi College of Pharmacy, Mangalore, Karnataka, India
| | - Vinod Parth
- Department of Pharmaceutics, Shree Devi College of Pharmacy, Mangalore, Karnataka, India
| | - Vivek Ghate
- Department of Pharmaceutics, Shree Devi College of Pharmacy, Mangalore, Karnataka, India
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Jeong KH, Woo HS, Kim CJ, Lee KH, Jeon JY, Lee SY, Kang JH, Lee S, Choi YW. Formulation of a modified-release pregabalin tablet using hot-melt coating with glyceryl behenate. Int J Pharm 2015; 495:1-8. [DOI: 10.1016/j.ijpharm.2015.08.057] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 08/13/2015] [Accepted: 08/20/2015] [Indexed: 10/23/2022]
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Physicochemical and release properties of carboxymethylated starches of Dioscorea from Jharkhand. Int J Biol Macromol 2015; 74:523-9. [DOI: 10.1016/j.ijbiomac.2014.11.039] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 11/12/2014] [Accepted: 11/21/2014] [Indexed: 11/20/2022]
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Hoosain FG, Choonara YE, Kumar P, Tomar LK, Tyagi C, du Toit LC, Pillay V. An epichlorohydrin-crosslinked semi-interpenetrating GG-PEO network as a xerogel matrix for sustained release of sulpiride. AAPS PharmSciTech 2014; 15:1292-306. [PMID: 24920521 DOI: 10.1208/s12249-014-0153-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 05/14/2014] [Indexed: 11/30/2022] Open
Abstract
The current study involved the development of a novel sustained release crosslinked semi-IPN xerogel matrix tablet prepared by chemical crosslinking of poly(ethylene) oxide (PEO) and gellan gum (GG) employing epichlorohydrin (EPI) as crosslinker. A Box-Behnken design was employed for the statistical optimization of the matrix system to ascertain the ideal combination of native polymeric and crosslinking agents. Characterization studies were performed by employing standard polymer characterization techniques such as Fourier transform infrared spectrometry, differential scanning calorimetry, and scanning electron microscopy. Formulated matrix tablets displayed zero-order release kinetics, extending over 24 h. The mechanism of drug release was primarily by swelling and surface erosion. Crosslinked semi-IPN xerogel matrix tablets were compared to non-crosslinked polymer blends; results from the study conducted showed that the physiochemical properties of the PEO and GG were sufficiently modified to allow for sustained release of sulpiride with a 100% drug release at 24 h in a controlled manner as compared to non-crosslinked formulations which displayed further release beyond the test period. Crosslinked formulations displayed water uptake between 450 and 500% indicating a controlled rate of swelling and erosion allowing for sustained release. Surface morphology of the crosslinked system depicted a porous structure formed by interpenetrating networks of polymers, allowing for a greater degree of controlled penetration into the system affording it the ability to sustain drug release. Therefore, conclusively, based on the study performed, crosslinked PEO-GG allows for the sustained release of sulpiride from a hydrophilic semi-IPN xerogel matrix system.
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Khan R, Ashraf MS, Afzal M, Kazmi I, Jahangir MA, Singh R, Chandra R, Anwar F. Formulation and evaluation of sustained release matrix tablet of rabeprazole using wet granulation technique. J Pharm Bioallied Sci 2014; 6:180-4. [PMID: 25035637 PMCID: PMC4097931 DOI: 10.4103/0975-7406.130961] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Revised: 05/06/2013] [Accepted: 06/23/2013] [Indexed: 11/09/2022] Open
Abstract
Introduction: Rabeprazole, a member of substituted benzimidazoles, inhibits the final step in gastric acid secretions. This drug claims to cause fastest acid separation (due to higher pKa), and more rapidly converts to the active species to aid gastric mucin synthesis. The most significant pharmacological action of Rabeprazole is dose dependent suppression of gastric acid secretion; without anticholinergic or H2-blocking action. It completely abolishes the hydrochloric acid secretion as it is powerful inhibitor of gastric acid. Rabeprazole is acid labile and hence commonly formulated as an enteric coated tablet. The absorption of rabeprazole occurs rapidly as soon as tablet leaves the stomach. Aim: In the present study an attempt was made to formulate and evaluate Rabeprazole sustained release matrix tablet using wet granulation technique incorporating various polymers like HPMC-E15, Carbopol934, and sodium carboxymethyl cellulose (CMC). Materials and Methods: The Formulated tablets were evaluated for different physicochemical properties like rheological properties, weight variation, thickness, hardness, % friability, in vitro release studies and drug content. Results: Studies revealed that all the physicochemical parameters comply with the official standards. The in vitro release studies exhibits the release up to 90%, over a prolonged period of time which confirms the extended release profile of formulation, having better bioavailability as well as decreased dosing frequency with reduced doses. Conclusion: The sustained release matrix tablets of rabiprazole shown better bioavailability, efficacy and potency, when compared with official standards.
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Affiliation(s)
- Ruqaiyah Khan
- Department of Pharmacology, Siddhartha Institute of Pharmacy, Dehradun, Uttarakhand, India
| | - Md Shamim Ashraf
- Ibne Seena Pharmacy College, Azmi Vidya Nagri, Shahabad Dist. Hardoi, UP, India
| | - Muhammad Afzal
- Department of Pharmacology, Siddhartha Institute of Pharmacy, Dehradun, Uttarakhand, India
| | - Imran Kazmi
- Department of Pharmacology, Siddhartha Institute of Pharmacy, Dehradun, Uttarakhand, India
| | | | - Rajbala Singh
- Department of Pharmacology, Siddhartha Institute of Pharmacy, Dehradun, Uttarakhand, India
| | - Ramesh Chandra
- Department of Pharmaceutics, Dehradun Institute of Technology, Dehradun, Uttarakhand, India
| | - Firoz Anwar
- Department of Pharmacology, Siddhartha Institute of Pharmacy, Dehradun, Uttarakhand, India
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Chen J, Huang GD, Tan SR, Guo J, Su ZQ. The preparation of capsaicin-chitosan microspheres (CCMS) enteric coated tablets. Int J Mol Sci 2013; 14:24305-19. [PMID: 24351818 PMCID: PMC3876112 DOI: 10.3390/ijms141224305] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 12/10/2013] [Accepted: 12/12/2013] [Indexed: 12/31/2022] Open
Abstract
This study aimed to research the preparation and content determination of capsaicin-chitosan microspheres (CCMS) enteric coated tablets. The core tablets were prepared with the method of wet granulation. Nine formulae were designed to determine the optimal formula of the core tablet. Eudragit L100 was used to prepare the CCMS enteric-coated tablets. The effect of enteric coated formulation variables such as content of talc (10%, 25% and 40%), plasticisers (TEC and DBS), dosage of plasticiser (10%, 20% and 30%) and coating weight (2%, 3% and 5%) were evaluated for drug release characteristics. The in vitro release was studied using 0.1 N HCl and pH 6.8 phosphate buffer. Enteric coated tablets without ruptures or swelling behaviour over 2 h in 0.1 N HCl indicated that these tablets showed acid resistance. The accumulated release rate in phosphate buffer (pH 6.8) revealed that the prepared tablets were able to sustain drug release into the intestine and a first-order release was obtained for capsaicin. This research is the first report of the preparation and content determination of CCMS enteric coated tablets. The sustained release behavior of enteric coated formulations in pH 6.8 phosphate buffer demonstrated that it would be a potential drug delivery platform for sustained delivery of gastric irritant drugs.
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Affiliation(s)
| | | | | | - Jiao Guo
- Key Research Center of Liver Regulation for Hyperlipemia SATCM/Class III Laboratory of Lipid Metabolism SATCM, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Zheng-Quan Su
- Key Research Center of Liver Regulation for Hyperlipemia SATCM/Class III Laboratory of Lipid Metabolism SATCM, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Jatav VS, Saggu JS, Sharma AK, Sharma A, Jat RK. Design, development and permeation studies of nebivolol hydrochloride from novel matrix type transdermal patches. Adv Biomed Res 2013; 2:62. [PMID: 24223377 PMCID: PMC3814574 DOI: 10.4103/2277-9175.115813] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 11/06/2012] [Indexed: 11/23/2022] Open
Abstract
Background: Nebivolol hydrochloride is a third generation β-blocker with highly selective β1-receptor antagonist with antihypertensive properties having plasma half life of 10 h and 12% oral bioavailability. The aim of the present investigation was to form matrix type transdermal patches containing Nebivolol hydrochloride to avoid its extensive hepatic first pass metabolism, lesser side effect and increase bioavailability of drug. Materials and Methods: Matrix type transdermal patches containing Nebivolol hydrochloride were prepared using EudragitRS100, HPMC K100M (2:8) polymers by solvent evaporation technique. Aluminum foil was used as a backing membrane. Polyethylene glycol (PEG) 400 was used as plasticizer and Dimethyl sulfoxide (DMSO) was used as a penetration enhancer. Drug polymer interactions determined by FTIR and standard calibration curve of Nebivolol hydrochloride were determined by using UV estimation. Result: The systems were evaluated physicochemical parameters and drug present in the patches was determined by scanning electron microscopy. All prepared formulations indicated good physical stability. In vitro drug permeation studies of formulations were performed by using Franz diffusion cells using abdomen skin of Wistar albino rat. Result showed best in vitro skin permeation through rat skin as compared to all other formulations prepared with hydrophilic polymer containing permeation enhancer. Conclusions: It was observed that the formulation containing HPMC: EudragitRS100 (8:2) showed ideal higuchi release kinetics. On the basis of in vitro drug release through skin permeation performance, Formulation F1 was found to be better than other formulations and it was selected as the optimized formulation.
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Affiliation(s)
- Vijay Singh Jatav
- Department of Pharmaceutics, Gyan Vihar School of Pharmacy, SGVU, Jaipur, India
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Mohanan A, Vishalakshi B, Charyulu RN, Harish NM, Ganesh S. Sustained Release of Atorvastatin from Radiation-Synthesized Stimuli-Responsive Hydrogels. INT J POLYM MATER PO 2013. [DOI: 10.1080/00914037.2011.641636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sarwar S, Hossain MS. Development and evaluation of sustained release losartan potassium matrix tablet using kollidon SR as release retardant. BRAZ J PHARM SCI 2012. [DOI: 10.1590/s1984-82502012000400005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study was undertaken to develop sustained release (SR) matrix tablets of losartan potassium, an angiotensin-II antagonist for the treatment of hypertension. The tablets were prepared by direct compression method, along with Kollidon SR as release retardant polymer. The amount of losartan potassium remains fixed (100 mg) for all the three formulations whereas the amounts of Kollidon SR were 250 mg, 225 mg, and 200 mg for F-1, F-2, and F-3 respectively. The evaluation involves three stages: the micromeritic properties evaluation of granules, physical property studies of tablets, and in-vitro release kinetics studies. The USP apparatus type II was selected to perform the dissolution test, and the dissolution medium was 900 mL phosphate buffer pH 6.8. The test was carried out at 75 rpm, and the temperature was maintained at 37 ºC ± 0.5 ºC. The release kinetics was analyzed using several kinetics models. Higher polymeric content in the matrix decreased the release rate of drug. At lower polymeric level, the rate and extent of drug release were enhanced. All the formulations followed Higuchi release kinetics where the Regression co-efficient (R²) values are 0.958, 0.944, and 0.920 for F-1, F-2, and F-3 respectively, and they exhibited diffusion dominated drug release. Statistically significant (P<0.05) differences were found among the drug release profile from different level of polymeric matrices. The release mechanism changed from non-fickian (n=0.489 for F-1) to fickian (n=0.439 and 0.429 for F-2, and F-3 respectively) as a function of decreasing the polymer concentration. The Mean Dissolution Time (MDT) values were increased with the increase in polymer concentration.
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Affiliation(s)
- Shahid Sarwar
- Noakhali Science and Technology University, Bangladesh
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Behl G, Sharma M, Sikka M, Dahiya S, Chhikara A, Chopra M. Gallic acid loaded disulfide cross-linked biocompatible polymeric nanogels as controlled release system: synthesis, characterization, and antioxidant activity. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:865-81. [DOI: 10.1080/09205063.2012.723958] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Gautam Behl
- a Department of Chemistry , Dyal Singh College, University of Delhi , Lodhi Road, Delhi , 110003 , India
| | - Monal Sharma
- b Dr. B.R. Ambedkar Center for Biomedical Research,University of Delhi , Delhi , 110007 , India
| | - Manisha Sikka
- b Dr. B.R. Ambedkar Center for Biomedical Research,University of Delhi , Delhi , 110007 , India
| | - Saurabh Dahiya
- c Department of Anatomical Sciences and Neurobiology , University of Louisville School of Medicine , Louisville , KY , USA
| | - Aruna Chhikara
- a Department of Chemistry , Dyal Singh College, University of Delhi , Lodhi Road, Delhi , 110003 , India
| | - Madhu Chopra
- b Dr. B.R. Ambedkar Center for Biomedical Research,University of Delhi , Delhi , 110007 , India
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