1
|
Veronica N, Heng PWS, Liew CV. Alginate-based matrix tablets for drug delivery. Expert Opin Drug Deliv 2023; 20:115-130. [PMID: 36503355 DOI: 10.1080/17425247.2023.2158183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION As a nature-derived polymer with swelling and gelling properties, alginate has found wide biopharma-relevant applications. However, there is comparatively limited attention on alginate in tablet formulations. Therefore, this review aimed to provide an overview of the applications of alginate in solid dosage form formulations. AREAS COVERED This review outlines the role of alginate for oral sustained release formulations. For better insights into its application in drug delivery, the mechanisms of drug release from alginate matrices are discussed alongside the alginate inherent properties and drug properties. Specifically, the influence of alginate properties and formulation components on the resultant alginate gel and subsequent drug release is reviewed. Modifications of the alginate to improve its properties in modulating drug release are also discussed. EXPERT OPINION Alginate-based matrix tablets is useful for sustaining drug release. As a nature-derived polymer, batch consistency and stability raise some concerns about employing alginate in formulations. Furthermore, the alginate gel properties can be affected by formulation components, pH of the dissolution environment and the tablet matrix micro-environment pH. Conscientious efforts are pivotal to addressing these formulation challenges to increase the utilization of alginate in oral solid dosage forms.
Collapse
Affiliation(s)
- Natalia Veronica
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, 117543, Singapore, Singapore
| | - Paul Wan Sia Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, 117543, Singapore, Singapore
| | - Celine Valeria Liew
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Subang Jaya, Malaysia
| |
Collapse
|
2
|
Remiro PDFR, Nagahara MHT, Azoubel RA, Franz-Montan M, d’Ávila MA, Moraes ÂM. Polymeric Biomaterials for Topical Drug Delivery in the Oral Cavity: Advances on Devices and Manufacturing Technologies. Pharmaceutics 2022; 15:pharmaceutics15010012. [PMID: 36678640 PMCID: PMC9864928 DOI: 10.3390/pharmaceutics15010012] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/03/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022] Open
Abstract
There are several routes of drug administration, and each one has advantages and limitations. In the case of the topical application in the oral cavity, comprising the buccal, sublingual, palatal, and gingival regions, the advantage is that it is painless, non-invasive, allows easy application of the formulation, and it is capable of avoiding the need of drug swallowing by the patient, a matter of relevance for children and the elderly. Another advantage is the high permeability of the oral mucosa, which may deliver very high amounts of medication rapidly to the bloodstream without significant damage to the stomach. This route also allows the local treatment of lesions that affect the oral cavity, as an alternative to systemic approaches involving injection-based methods and oral medications that require drug swallowing. Thus, this drug delivery route has been arousing great interest in the pharmaceutical industry. This review aims to condense information on the types of biomaterials and polymers used for this functionality, as well as on production methods and market perspectives of this topical drug delivery route.
Collapse
Affiliation(s)
- Paula de Freitas Rosa Remiro
- Department of Engineering of Materials and of Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
| | - Mariana Harue Taniguchi Nagahara
- Department of Engineering of Materials and of Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
| | - Rafael Abboud Azoubel
- Department of Manufacturing and Materials Engineering, School of Mechanical Engineering, University of Campinas, Campinas 13083-860, SP, Brazil
| | - Michelle Franz-Montan
- Department of Biosciences, Piracicaba Dental School, University of Campinas, Piracicaba 13414-903, SP, Brazil
| | - Marcos Akira d’Ávila
- Department of Manufacturing and Materials Engineering, School of Mechanical Engineering, University of Campinas, Campinas 13083-860, SP, Brazil
| | - Ângela Maria Moraes
- Department of Engineering of Materials and of Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
- Correspondence:
| |
Collapse
|
3
|
Biodefensive Based on Piper nigrum Essential Oil for Controlling of Anopheles aquasalis Larvae: Influence of Temperature (35 °C) and Preservatives. Biomolecules 2022; 12:biom12111711. [DOI: 10.3390/biom12111711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 11/22/2022] Open
Abstract
Considerable efforts have been spent on the development of biodefensives based on the encapsulation of essential oils for controlling of urban pests from their larval stage, especially as anopheline controlling agents. The larval source management of Anopheles aquasalis is important for malaria prevention. For this reason, this research proposes larvicidal biodefensives based on polymeric particles loaded with Piper nigrum essential oil, considering the influence of temperature (35 °C) and preservatives on the formulation stability. The biodefensive containing the preservative phenoxyethanol/methylisothiazolinone (PNE) resulted in 5 months of shelf-life storage with an Encapsulation Efficiency (EE%) of essential oil of 70%. The biodefensive PNE (containing 500 µg.mL−1 of encapsulated essential oil) presented a polydisperse particle size distribution, ranging from D10 = (127 ± 10) nm to D90 = (472 ± 78) nm and a particle mean size of (236 ± 34) nm. The AFM images revealed a spherical morphology with an external surface almost regular and smooth. The controlled release of the essential oil was evaluated up to 72 h according to the Korsmeyer-Peppas mathematical model, confirming the anomalous transport (n = 0.64 in pH = 3 and pH = 10, and n = 0.65 in pH = 7). The total larvae mortality on the in loco bioassays was almost reached (92%) after 24 h. However, according to the in vitro bioassays applying the in natura essential oil alone, the concentration of 454 μg.mL−1 resulted on the mortality of 70% of the larvae after 24 h. For this reason, the highest efficiency of the biodefensive PNE may be related to the encapsulation of essential oil, delivering the loaded particles more efficiently inside the larvae. From this perspective, the present study shows that a formulation based on P. nigrum essential oil may be taken into account in the integrated management of disease vector mosquitoes.
Collapse
|
4
|
Rocha ALF, de Aguiar Nunes RZ, Matos RS, da Fonseca Filho HD, de Araújo Bezerra J, Lima AR, Guimarães FEG, Pamplona AMSR, Majolo C, de Souza MG, Campelo PH, Ţălu Ş, Bagnato VS, Inada NM, Sanches EA. Alternative Controlling Agent of Theobroma grandiflorum Pests: Nanoscale Surface and Fractal Analysis of Gelatin/PCL Loaded Particles Containing Lippia origanoides Essential Oil. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2712. [PMID: 35957144 PMCID: PMC9370742 DOI: 10.3390/nano12152712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/05/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
A new systematic structural study was performed using the Atomic Force Microscopy (AFM) reporting statistical parameters of polymeric particles based on gelatin and poly-ε-caprolactone (PCL) containing essential oil from Lippia origanoides. The developed biocides are efficient alternative controlling agents of Conotrachelus humeropictus and Moniliophtora perniciosa, the main pests of Theobroma grandiflorum. Our results showed that the particles morphology can be successfully controlled by advanced stereometric parameters, pointing to an appropriate concentration of encapsulated essential oil according to the particle surface characteristics. For this reason, the absolute concentration of 1000 µg·mL-1 (P1000 system) was encapsulated, resulting in the most suitable surface microtexture, allowing a faster and more efficient essential oil release. Loaded particles presented zeta potential around (-54.3 ± 2.3) mV at pH = 8, and particle size distribution ranging from 113 to 442 nm. The hydrodynamic diameter of 90% of the particle population was found to be up to (405 ± 31) nm in the P1000 system. The essential oil release was evaluated up to 80 h, with maximum release concentrations of 63% and 95% for P500 and P1000, respectively. The best fit for the release profiles was obtained using the Korsmeyer-Peppas mathematical model. Loaded particles resulted in 100% mortality of C. humeropictus up to 48 h. The antifungal tests against M. perniciosa resulted in a minimum inhibitory concentration of 250 µg·mL-1, and the P1000 system produced growth inhibition up to 7 days. The developed system has potential as alternative controlling agent, due to its physical stability, particle surface microtexture, as well as pronounced bioactivity of the encapsulated essential oil.
Collapse
Affiliation(s)
- Ana Luisa Farias Rocha
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Ronald Zico de Aguiar Nunes
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Robert Saraiva Matos
- Amazonian Materials Group, Federal University of Amapá (UNIFAP), Macapá 68903-419, AP, Brazil
| | - Henrique Duarte da Fonseca Filho
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Laboratory of Nanomaterials Synthesis and Nanoscopy (LSNN), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Jaqueline de Araújo Bezerra
- Analytical Center, Federal Institute of Education, Science and Technology of Amazonas (IFAM), Manaus 69020-120, AM, Brazil
| | - Alessandra Ramos Lima
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
| | | | | | - Cláudia Majolo
- EMBRAPA Western Amazon, Manaus AM-010 Km 29, Manaus 69010-970, AM, Brazil
| | | | - Pedro Henrique Campelo
- Department of Food Technology, Federal University of Viçosa (UFV), Viçosa 36570-900, MG, Brazil
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, 15 Constantin Daicoviciu St., 400020 Cluj-Napoca, Cluj County, Romania
| | - Vanderlei Salvador Bagnato
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
- Hagler Institute for Advanced Studies, Texas A&M University, College Station, TX 77843, USA
| | - Natalia Mayumi Inada
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
| | - Edgar Aparecido Sanches
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| |
Collapse
|
5
|
Azevedo SG, Rocha ALF, de Aguiar Nunes RZ, da Costa Pinto C, Ţălu Ş, da Fonseca Filho HD, de Araújo Bezerra J, Lima AR, Guimarães FEG, Campelo PH, Bagnato VS, Inada NM, Sanches EA. Pulsatile Controlled Release and Stability Evaluation of Polymeric Particles Containing Piper nigrum Essential Oil and Preservatives. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5415. [PMID: 35955350 PMCID: PMC9369902 DOI: 10.3390/ma15155415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/27/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
Considerable efforts have been spent on environmentally friendly particles for the encapsulation of essential oils. Polymeric particles were developed to encapsulate the essential oil from Piper nigrum based on gelatin and poly-ε-caprolactone (PCL) carriers. Gas Chromatography ((Flame Ionization Detection (GC/FID) and Mass Spectrometry (GC/MS)), Atomic Force Microscopy (AFM), Nanoparticle Tracking Analysis (NTA), Confocal Laser Scanning Microscopy (CLSM), Attenuated Total Reflectance-Fourier-transform Infrared Spectroscopy (ATR-FTIR), and Ultraviolet-Visible (UV-VIS) spectroscopy were used for the full colloidal system characterization. The essential oil was mainly composed of β-caryophyllene (~35%). The stability of the encapsulated systems was evaluated by Encapsulation Efficiency (EE%), electrical conductivity, turbidity, pH, and organoleptic properties (color and odor) after adding different preservatives. The mixture of phenoxyethanol/isotialzoni-3-one (PNE system) resulted in enhanced stability of approximately 120 and 210 days under constant handling and shelf-life tests, respectively. The developed polymeric system presented a similar controlled release in acidic, neutral, or basic pH, and the release curves suggested a pulsatile release mechanism due to a complexation of essential oil in the PCL matrix. Our results showed that the developed system has potential as an alternative stable product and as a controlling agent, due to the pronounced bioactivity of the encapsulated essential oil.
Collapse
Affiliation(s)
- Sidney Gomes Azevedo
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Chemistry (PPGQ), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Ana Luisa Farias Rocha
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Ronald Zico de Aguiar Nunes
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Camila da Costa Pinto
- Graduate Program in Physics (PPGFIS), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, 15 Constantin Daicoviciu St., 400020 Cluj-Napoca, Cluj County, Romania
| | - Henrique Duarte da Fonseca Filho
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Physics (PPGFIS), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Laboratory of Nanomaterials Synthesis and Nanoscopy (LSNN), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Jaqueline de Araújo Bezerra
- Analytical Center, Federal Institute of Education, Science and Technology of Amazonas (IFAM), Manaus 69020-120, AM, Brazil
| | - Alessandra Ramos Lima
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
| | | | - Pedro Henrique Campelo
- Department of Food Technology, Federal University of Viçosa (UFV), Viçosa 36570-900, MG, Brazil
| | - Vanderlei Salvador Bagnato
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
- Hagler Institute for Advanced Studies, Texas A&M University, College Station, TX 77843-3572, USA
| | - Natalia Mayumi Inada
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
| | - Edgar Aparecido Sanches
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Chemistry (PPGQ), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Physics (PPGFIS), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| |
Collapse
|
6
|
Abu El- Enin AS, Elbakry AM, El Hosary R, Fouad Lotfy MA, Yahia R. Formulation, development, in vivo pharmacokinetics and pharmacological efficacy evaluation of novel vaginal bioadhesive sustained core-in-cup salbutamol sulphate tablets for preterm labor. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.102076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Esim O, Savaser A, Ozkan CK, Tas C, Ozkan Y. Investigation of the mucoadhesivity, swelling, and drug release mechanisms of indomethacin buccal tablets: effect of formulation variables. Drug Dev Ind Pharm 2020; 46:1979-1987. [PMID: 33003960 DOI: 10.1080/03639045.2020.1831526] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The purpose of this study was to investigate the effect of formulation variables on properties related to critical functionality for their use in indomethacin buccal tablets. Chitosan (CH), carbopol (PAA), and hydroxypropyl methyl cellulose (HPMC) concentration and filler type were evaluated as parameters for describing tablet hardness, swelling index, indomethacin release, and mucoadhesion in controlled release buccal tablets. Moreover, a 32 full factorial design was employed to study the effect of each polymer ratio in CH and PAA combination, which significantly influenced characteristics. A slower indomethacin release and a considerably larger degree of swelling were found for different concentrations of PAA or CH (p < 0.05). The buccal tablets formed a continuous gel layer while in contact with the aqueous medium undergoing a combination of swelling and erosion. In vitro drug release in simulated saliva (pH 6.75) appears to occur both by diffusion and a swelling-controlled mechanism, exhibiting anomalous, Case II type transport or Super Case II type transport. The diluent present in all study samples, mannitol (MAN), spray-dried lactose (SDL), and microcrystalline cellulose (MC) were believed to contribute minimally to hydrogel formation and drug release regulation. The dissolution values for the three co-excipients were decreasing order mannitol, spray-dried lactose, and microcrystalline cellulose. In conclusion, the type and concentration of all polymers seem to change the functionality of buccal tablets and it seems important to understand and characterize these excipients to fully predict the drug release, mucoadhesion, and swelling of buccal tablets.
Collapse
Affiliation(s)
- Ozgur Esim
- Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, University of Health Sciences, Ankara, Turkey
| | - Ayhan Savaser
- Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, University of Health Sciences, Ankara, Turkey
| | - Cansel Kose Ozkan
- Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, University of Health Sciences, Ankara, Turkey
| | - Cetin Tas
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Yeditepe University, Istanbul, Turkey
| | - Yalcın Ozkan
- Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, University of Health Sciences, Ankara, Turkey
| |
Collapse
|
8
|
Mukherjee D, Srinivasan B, Anbu J, Azamthulla M, Teja BV, Ramachandra S, N K, Lakkawar A. Pamidronate functionalized mucoadhesive compact for treatment of osteoporosis-in vitro and in vivo characterization. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
9
|
Polymer adhesion predictions for oral dosage forms to enhance drug administration safety. Part 3: Review of in vitro and in vivo methods used to predict esophageal adhesion and transit time. Colloids Surf B Biointerfaces 2018. [PMID: 29524806 DOI: 10.1016/j.colsurfb.2018.02.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The oral cavity is frequently used to administer pharmaceutical drug products. This route of administration is seen as the most accessible for the majority of patients and supports an independent therapy management. For current oral dosage forms under development, the prediction of their unintended mucoadhesive properties and esophageal transit profiles would contribute for future administration safety, as concerns regarding unintended adhesion of solid oral dosage forms (SODF) during oro-esophageal transit still remain. Different in vitro methods that access mucoadhesion of polymers and pharmaceutical preparations have been proposed over the years. The same methods might be used to test non-adhesive systems and contribute for developing safe-to-swallow technologies. Previous works have already investigated the suitability of non-animal derived in vitro methods to assess such properties. The aim of this work was to review the in vitro methodology available in the scientific literature that used animal esophageal tissue to evaluate mucoadhesion and esophageal transit of pharmaceutical preparations. Furthermore, in vivo methodology is also discussed. Since none of the in vitro methods developed are able to mimic the complex swallowing process and oro-esophageal transit, in vivo studies in humans remain as the gold standard.
Collapse
|
10
|
Singh M, Kanoujia J, Parashar P, Arya M, Tripathi CB, Sinha VR, Saraf SK, Saraf SA. Assessment of improved buccal permeation and bioavailability of felodipine microemulsion-based cross-linked polycarbophil gel. Drug Deliv Transl Res 2018; 8:591-601. [DOI: 10.1007/s13346-018-0489-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
11
|
Cholesterol modulates the liposome membrane fluidity and permeability for a hydrophilic molecule. Food Chem Toxicol 2018; 113:40-48. [PMID: 29337230 DOI: 10.1016/j.fct.2018.01.017] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/09/2018] [Accepted: 01/11/2018] [Indexed: 01/27/2023]
Abstract
The effect of cholesterol (CHOL) content on the permeability and fluidity of dipalmitoylphosphatidylcholine (DPPC) liposome membrane was investigated. Liposomes encapsulating sulforhodamine B (SRB), a fluorescent dye, were prepared by reverse phase evaporation technique (REV) at various DPPC:CHOL molar ratios (from 100:0 to 100:100). The release kinetics of SRB was studied during 48 h in buffer (pH 7.4) containing NaCl at 37 °C. The DPPC:CHOL formulations were also characterized for their size, polydispersity index and morphology. Increasing CHOL concentration induced an increase in the mean liposomes size accompanying with a shape transition from irregular to nanosized, regular and spherical vesicles. The release kinetics of SRB showed a biphasic pattern; the release data was then analyzed using different mathematical models. On the overall, the SRB release was governed by a non-Fickian diffusion during the first period (0-10 h) while it followed a Fickian diffusion between 10 and 48 h. Changes in DPPC liposome membrane fluidity of various batches (CHOL% 0, 10, 20, 30 and 100) were monitored by using 5- and 16 doxyl stearic acids (DSA) as spin labels. CHOL induced a decrease in the bilayer fluidity. Concisely, CHOL represents a critical component in modulating the release of hydrophilic molecules from lipid vesicles.
Collapse
|
12
|
Esim O, Savaser A, Ozkan C, Bayrak Z, Tas C, Ozkan Y. Effect of polymer type on characteristics of buccal tablets using factorial design. Saudi Pharm J 2018; 26:53-63. [PMID: 29379333 PMCID: PMC5783814 DOI: 10.1016/j.jsps.2017.10.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 10/24/2017] [Indexed: 11/22/2022] Open
Abstract
A two factor three level factorial design was used to investigate the effects of carbopol and cationic hydrophilic polymers which have a common use in buccal drug formulations. Statistical models with interaction terms were derived to evaluate influence of carbopol (X1) and chitosan (X2) on tablet disintegration (Y1) and dissolution (Y2), mechanical properties (Y3), swelling (Y4). Tablet disintegration studies were carried out using two different pH environments within buccal region pH limits and also two different commonly used dissolution methods for buccal tablets were also investigated to compare the effect of polymer type on dissolution. Polymer type and ratio affect the characteristics of the buccal tablets due to their different physicochemical behavior at buccal pH. Also significant variances between dissolution profiles for buccal tablets, using either USP Paddle or flow through cell methods were found. These results indicate that both polymer type and ratio as well as combination of them effects the drug behavior in different ways.
Collapse
Affiliation(s)
- O. Esim
- University of Health Sciences, Gulhane Campus, Department of Pharmaceutical Sciences, Etlik, Ankara, Turkey
| | - A. Savaser
- University of Health Sciences, Gulhane Campus, Department of Pharmaceutical Sciences, Etlik, Ankara, Turkey
| | - C.K. Ozkan
- University of Health Sciences, Gulhane Campus, Department of Pharmaceutical Sciences, Etlik, Ankara, Turkey
| | - Z. Bayrak
- Ministry of National Defense, Ankara, Turkey
| | - C. Tas
- University of Health Sciences, Gulhane Campus, Department of Pharmaceutical Sciences, Etlik, Ankara, Turkey
| | - Y. Ozkan
- University of Health Sciences, Gulhane Campus, Department of Pharmaceutical Sciences, Etlik, Ankara, Turkey
| |
Collapse
|
13
|
Abstract
The aim of this study was to design and optimize risperidone (RIS) mucoadhesive buccal tablets for systemic delivery as an alternative route. Direct compression method was used for the preparation of buccal tablets, and screening studies were conducted with different polymers to determine their effects on tablet characteristics. Carbopol® (CP) and sodium alginate (SA) were selected as two polymer types for further optimization studies by applying response surface methodology. Tablet hardness (TH), ex vivo residence time (RT), and peak detachment force (DF) from buccal mucosa were selected as three important responses. Physicochemical compatibility of formulation excipients and RIS was evaluated by using Fourier transform infrared (FT-IR) spectroscopy and differential scanning calorimetry (DSC) analysis. In vitro drug release profiles and release kinetics were investigated; swelling index and matrix erosion studies were conducted. Optimum formulation consisted of 16.4% CP and 20.3% SA, which provided 7.67±0.29 hour ex vivo RT, 45.52±4.85 N TH, and 2.12±0.17 N DF. FT-IR spectroscopy and DSC analysis revealed that there was no chemical interaction present between tablet ingredients. Cumulative RIS release of >90% was achieved after 8 hours of in vitro dissolution studies, which was supported by swelling and matrix erosion analysis. Mechanism of RIS release was fitted best to zero-order model, while release exponent (n) value of 0.77 demonstrated an anomalous (non-Fickian) release, indicating combined erosion and swelling mechanism. The results suggested that optimized buccal tablets of RIS would be a promising and alternative delivery system for the treatment of schizophrenia.
Collapse
Affiliation(s)
- Burak Çelik
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Bezmialem Vakıf University, Fatih, Istanbul, Turkey
| |
Collapse
|
14
|
Mendonsa NS, Thipsay P, Kim DW, Martin ST, Repka MA. Bioadhesive Drug Delivery System for Enhancing the Permeability of a BCS Class III Drug via Hot-Melt Extrusion Technology. AAPS PharmSciTech 2017; 18:2639-2647. [PMID: 28247291 PMCID: PMC5600703 DOI: 10.1208/s12249-017-0728-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/23/2017] [Indexed: 11/30/2022] Open
Abstract
As the buccal route of administration has the ability to avoid the GI tract and first-pass effect by directing the absorption toward the cheek area, the bioavailability of BCS class III drugs can be increased through this route. Only a handful of studies have been conducted using oleic acid as a permeation enhancer in any transbuccal drug delivery system. Therefore, the objectives of this novel study were to develop a buccal tablet using two concentrations of oleic acid for a model BCS class III drug via hot-melt extrusion technology and to investigate the effects of oleic acid on the physicochemical properties of the tablet. The model drug selected was ondansetron hydrochloride. Formulations consisting of polymers (hydroxypropyl methylcellulose and polyethylene oxide) and two concentrations of oleic acid were prepared by hot-melt extrusion techniques. A melting point depression of the drug was obtained in the extruded granules as seen by the DSC thermograms. The ex vivo permeation studies showed a greater permeation of the drug in the formulation containing 10% oleic acid (F2) as compared to the formulation containing 20% oleic acid (F1), although not statistically significant. The in vitro bioadhesion studies, swelling studies, and surface pH measurements of the tablets were also conducted. In conclusion, permeation studies exhibited the potential of oleic acid as a buccal permeation enhancer as a significant permeation of the drug was obtained in the formulations. Hot-melt extrusion technology was successfully employed to formulate buccal tablets of ondansetron hydrochloride.
Collapse
Affiliation(s)
- Nicole S Mendonsa
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA
| | - Priyanka Thipsay
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA
| | - Dong Wuk Kim
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA
| | - Scott T Martin
- Thermo Fisher Scientific, Tewksbury, Massachusetts, 01876, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, 38677, USA.
- Pii Center for Pharmaceutical Technology, School of Pharmacy, The University of Mississippi, Oxford, Mississippi, 38677, USA.
| |
Collapse
|
15
|
Pectins functionalized biomaterials; a new viable approach for biomedical applications: A review. Int J Biol Macromol 2017; 101:254-272. [DOI: 10.1016/j.ijbiomac.2017.03.029] [Citation(s) in RCA: 160] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 03/03/2017] [Accepted: 03/06/2017] [Indexed: 12/31/2022]
|
16
|
Çelik B, Özdemir S, Barla Demirkoz A, Üner M. Optimization of piribedil mucoadhesive tablets for efficient therapy of Parkinson's disease: physical characterization and ex vivo drug permeation through buccal mucosa. Drug Dev Ind Pharm 2017; 43:1836-1845. [PMID: 28665152 DOI: 10.1080/03639045.2017.1349785] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The aim of this study was optimization of buccal piribedil (PR) mucoadhesive tablets to improve its low bioavailability and provide controlled release for the treatment of Parkinson's disease. METHODS Buccal tablets were prepared by direct compression method using carbomer (CP), carboxymethyl cellulose (CMC), and hydroxypropyl methylcellulose (HPMC) as mucoadhesive polymers. Physical properties of powder mixtures and buccal tablets were evaluated. Physicochemical compatibility between ingredients was investigated with infrared spectroscopy and differential scanning calorimetry analysis. In vitro dissolution profiles and drug release kinetics of buccal tablets were investigated. Mucoadhesion and ex vivo permeation studies were performed using sheep buccal mucosa. RESULTS Powder mixtures demonstrated sufficient flow properties and physical characteristics of all tablet formulations were within compendia limits. Tablet ingredients were absent of any chemical interactions. CP tablets displayed slower drug release compared to HPMC tablets with zero order release, while CMC tablets lost their integrity and released entire drug after 6 h following Higuchi model. All formulations displayed adequate mucoadhesion and steady state flux of PR through buccal mucosa were higher with HPMC compared to CP-containing tablets. CONCLUSION Overall, HPMC was found to combine desired controlled release and mucoadhesion characteristics with sufficient pharmaceutical quality for optimization of buccal tablets. Piribedil mucoadhesive buccal tablets designed for the first time may introduce a new alternative for the treatment of Parkinson's disease.
Collapse
Affiliation(s)
- Burak Çelik
- a Department of Pharmaceutical Technology , Bezmialem Vakif University , Fatih, Istanbul , Turkey
| | - Samet Özdemir
- b Department of Pharmaceutical Technology , Yeditepe University , Atasehir, Istanbul , Turkey
| | - Aslı Barla Demirkoz
- c Aromsa Besin Aroma ve Katki Maddeleri Sanayi ve Ticaret Anonim Sirketi , Gebze, Kocaeli , Turkey
| | - Melike Üner
- d Department of Pharmaceutical Technology , Istanbul University , Beyazit, Istanbul , Turkey
| |
Collapse
|
17
|
Drug delivery techniques for buccal route: formulation strategies and recent advances in dosage form design. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2016. [DOI: 10.1007/s40005-016-0281-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
18
|
Russo E, Selmin F, Baldassari S, Gennari C, Caviglioli G, Cilurzo F, Minghetti P, Parodi B. A focus on mucoadhesive polymers and their application in buccal dosage forms. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2015.06.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
19
|
Shojaee S, Emami P, Mahmood A, Rowaiye Y, Dukulay A, Kaialy W, Cumming I, Nokhodchi A. An Investigation on the Effect of Polyethylene Oxide Concentration and Particle Size in Modulating Theophylline Release from Tablet Matrices. AAPS PharmSciTech 2015; 16:1281-9. [PMID: 25771738 PMCID: PMC4666262 DOI: 10.1208/s12249-015-0295-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 01/15/2015] [Indexed: 11/30/2022] Open
Abstract
Polyethylene oxide has been researched extensively as an alternative polymer to hydroxypropyl methylcellulose (HPMC) in controlled drug delivery due to its desirable swelling properties and its availability in a number of different viscosity grades. Previous studies on HPMC have pointed out the importance of particle size on drug release, but as of yet, no studies have investigated the effect of particle size of polyethylene oxide (polyox) on drug release. The present study explored the relationship between polymer level and particle size to sustain the drug release. Tablets produced contained theophylline as their active ingredient and consisted of different polyethylene oxide particle size fractions (20-45, 45-90, 90-180 and 180-425 μm). It was shown that matrices containing smaller particle sizes of polyox produced harder tablets than when larger polyox particles were used. The release studies showed that matrices consisting of large polyox particles showed a faster release rate than matrices made from smaller particles. Molecular weight (MW) of the polymer was a key determining step in attaining sustained release, with the high MW of polyox resulting in a delayed release profile. The results showed that the effect of particle size on drug release was more detrimental when a low concentration of polyox was used. This indicates that care must be taken when low levels of polyox with different particle size fractions are used. More robust formulations could be obtained when the concentration of polyox is high. Differential scanning calorimetry (DSC) traces showed that particle size had no major effect on the thermal behaviour of polyox particles.
Collapse
Affiliation(s)
- Saeed Shojaee
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Parastou Emami
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Ahmad Mahmood
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Yemisi Rowaiye
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Alusine Dukulay
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Waseem Kaialy
- School of Pharmacy, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, WV1 1LY, UK
| | - Iain Cumming
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Ali Nokhodchi
- School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9QG, UK.
- Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| |
Collapse
|
20
|
Abruzzo A, Cerchiara T, Bigucci F, Gallucci MC, Luppi B. Mucoadhesive Buccal Tablets Based on Chitosan/Gelatin Microparticles for Delivery of Propranolol Hydrochloride. J Pharm Sci 2015; 104:4365-4372. [DOI: 10.1002/jps.24688] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 09/18/2015] [Accepted: 09/23/2015] [Indexed: 11/12/2022]
|
21
|
Jaipal A, Pandey MM, Charde SY, Sadhu N, Srinivas A, Prasad RG. Controlled release effervescent buccal discs of buspirone hydrochloride: in vitro and in vivo evaluation studies. Drug Deliv 2015; 23:452-8. [PMID: 24892624 DOI: 10.3109/10717544.2014.917388] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In the present study controlled release effervescent buccal discs of buspirone hydrochloride (BS) were designed using HPMC as rate controlling and bioadhesive polymer by direct compression method. Sodium bicarbonate and citric acid were used in varying amounts as effervescence forming agents. Carbon dioxide evolved due to reaction of sodium bicarbonate and citric acid was explored for its potential as buccal permeation enhancer. The designed buccal discs were evaluated for physical characteristics and in vitro drug release studies. Bioadhesive behavior of designed buccal discs was assessed using texture analyzer. In vivo animal studies were performed in rabbits to study bioavailability of BS in the designed buccal discs and to establish permeation enhancement ability of carbon dioxide. It was observed that effervescent buccal discs have faster drug release compared to non-effervescent buccal discs in vitro and effervescent buccal discs demonstrated significant increase in bioavailability of drug when compared to non-effervescent formulation. Hence, effervescent buccal discs can be used as an alternative to improve the drug permeation resulting in better bioavailability. However, the amount of acid and base used for generation of carbon dioxide should be selected with care as this may damage the integrity of bioadhesive dosage form.
Collapse
Affiliation(s)
- A Jaipal
- a Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus , Rajasthan , India and
| | - M M Pandey
- a Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus , Rajasthan , India and
| | - S Y Charde
- b Department of Pharmacy , Birla Institute of Technology and Science Pilani, Hyderabad Campus , Andhra Pradesh , India
| | - N Sadhu
- a Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus , Rajasthan , India and
| | - A Srinivas
- a Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus , Rajasthan , India and
| | - R G Prasad
- a Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus , Rajasthan , India and
| |
Collapse
|
22
|
El-Setouhy DA, Ahmed S, Badawi AAEL, El-Nabarawi MA, Sallam N. Preclinical evaluation of dual action intranasal formulation intended for postoperative/cancer associated therapies. Eur J Pharm Sci 2015; 76:48-56. [DOI: 10.1016/j.ejps.2015.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 03/31/2015] [Accepted: 04/20/2015] [Indexed: 10/23/2022]
|
23
|
Formulation and in vitro, in vivo evaluation of effervescent floating sustained-release imatinib mesylate tablet. PLoS One 2015; 10:e0126874. [PMID: 26035710 PMCID: PMC4452730 DOI: 10.1371/journal.pone.0126874] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 04/08/2015] [Indexed: 11/19/2022] Open
Abstract
Introduction Imatinib mesylate is an antineoplastic agent which has high absorption in the upper part of the gastrointestinal tract (GIT). Conventional imatinib mesylate (Gleevec) tablets produce rapid and relatively high peak blood levels and requires frequent administration to keep the plasma drug level at an effective range. This might cause side effects, reduced effectiveness and poor therapeutic management. Therefore, floating sustained-release Imatinib tablets were developed to allow the tablets to be released in the upper part of the GIT and overcome the inadequacy of conventional tablets. Methodology Floating sustained-release Imatinib mesylate tablets were prepared using the wet granulation method. Tablets were formulated using Hydroxypropyl Methylcellulose (HPMC K4M), with Sodium alginate (SA) and Carbomer 934P (CP) as release-retarding polymers, sodium bicarbonate (NaHCO3) as the effervescent agent and lactose as a filler. Floating behavior, in vitro drug release, and swelling index studies were conducted. Initial and total drug release duration was compared with a commercial tablet (Gleevec) in 0.1 N HCl (pH 1.2) at 37 ± 0.5°C for 24 hours. Tablets were then evaluated for various physical parameters, including weight variation, thickness, hardness, friability, and drug content. Consequently, 6 months of physical stability studies and in vitro gastro-retentive studies were conducted. Results and Discussion Statistical data analysis revealed that tablets containing a composition of 14.67% w/w HPMC K4M, 10.67%, w/w Na alginate, 1.33%, w/w Carbomer 934P and 9.33%, w/w NaHCO3 produced the most favorable formulation to develop 24-hour sustained-release tablets with optimum floating behavior and satisfactory physicochemical characteristics. Furthermore, in vitro release study revealed that the formulated SR tablet had significantly lower Cmax and higher Tmax compared to the conventional tablet (Gleevec). Thus, formulated SR tablets preserved persistent concentration of plasma up to 24 hours. Conclusion In conclusion, in order to suggest a better drug delivery system with constant favorable release, resulting in optimized absorption and less side effects, formulated CP-HPMC-SA based imatinib mesylate floating sustained-release tablets can be a promising candidate for cancer chemotherapy.
Collapse
|
24
|
Shojaee S, Emami P, Mahmood A, Rowaiye Y, Dukulay A, Kaialy W, Cumming I, Nokhodchi A. An Investigation on the Effect of Polyethylene Oxide Concentration and Particle Size in Modulating Theophylline Release from Tablet Matrices. AAPS PharmSciTech 2015. [PMID: 25771738 DOI: 10.1208/s12249-015-0295-z.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Polyethylene oxide has been researched extensively as an alternative polymer to hydroxypropyl methylcellulose (HPMC) in controlled drug delivery due to its desirable swelling properties and its availability in a number of different viscosity grades. Previous studies on HPMC have pointed out the importance of particle size on drug release, but as of yet, no studies have investigated the effect of particle size of polyethylene oxide (polyox) on drug release. The present study explored the relationship between polymer level and particle size to sustain the drug release. Tablets produced contained theophylline as their active ingredient and consisted of different polyethylene oxide particle size fractions (20-45, 45-90, 90-180 and 180-425 μm). It was shown that matrices containing smaller particle sizes of polyox produced harder tablets than when larger polyox particles were used. The release studies showed that matrices consisting of large polyox particles showed a faster release rate than matrices made from smaller particles. Molecular weight (MW) of the polymer was a key determining step in attaining sustained release, with the high MW of polyox resulting in a delayed release profile. The results showed that the effect of particle size on drug release was more detrimental when a low concentration of polyox was used. This indicates that care must be taken when low levels of polyox with different particle size fractions are used. More robust formulations could be obtained when the concentration of polyox is high. Differential scanning calorimetry (DSC) traces showed that particle size had no major effect on the thermal behaviour of polyox particles.
Collapse
Affiliation(s)
- Saeed Shojaee
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Parastou Emami
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Ahmad Mahmood
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Yemisi Rowaiye
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Alusine Dukulay
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Waseem Kaialy
- School of Pharmacy, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, WV1 1LY, UK
| | - Iain Cumming
- Medway School of Pharmacy, Universities of Kent and Greenwich, Chatham, ME4 4 TB, UK
| | - Ali Nokhodchi
- School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9QG, UK. .,Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| |
Collapse
|
25
|
Panda B, Digdarsini T, Mallick S. Physicomechanical and physicochemical characterizations of biexponential compaction process of paracetamol in the presence of talcum-lubricated-MCC. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2014.12.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
26
|
Boateng JS, Pawar HV, Tetteh J. Evaluation of in vitro wound adhesion characteristics of composite film and wafer based dressings using texture analysis and FTIR spectroscopy: a chemometrics factor analysis approach. RSC Adv 2015. [DOI: 10.1039/c5ra20787h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Comparing adhesion of film and wafer based dressings using texture analysis and FTIR spectroscopy combined with chemometrics target factor analysis.
Collapse
Affiliation(s)
- J. S. Boateng
- Department of Pharmaceutical
- Chemical and Environmental Sciences
- Faculty of Engineering and Science
- University of Greenwich at Medway
- Kent
| | - H. V. Pawar
- Department of Pharmaceutical
- Chemical and Environmental Sciences
- Faculty of Engineering and Science
- University of Greenwich at Medway
- Kent
| | - J. Tetteh
- Department of Pharmaceutical
- Chemical and Environmental Sciences
- Faculty of Engineering and Science
- University of Greenwich at Medway
- Kent
| |
Collapse
|
27
|
Jaipal A, Pandey MM, Charde SY, Raut PP, Prasanth KV, Prasad RG. Effect of HPMC and mannitol on drug release and bioadhesion behavior of buccal discs of buspirone hydrochloride: In-vitro and in-vivo pharmacokinetic studies. Saudi Pharm J 2014; 23:315-26. [PMID: 26106280 PMCID: PMC4475836 DOI: 10.1016/j.jsps.2014.11.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 11/29/2014] [Indexed: 12/03/2022] Open
Abstract
Delivery of orally compromised therapeutic drug molecules to the systemic circulation via buccal route has gained a significant interest in recent past. Bioadhesive polymers play a major role in designing such buccal dosage forms, as they help in adhesion of designed delivery system to mucosal membrane and also prolong release of drug from delivery system. In the present study, HPMC (release retarding polymer) and mannitol (diluent and pore former) were used to prepare bioadhesive and controlled release buccal discs of buspirone hydrochloride (BS) by direct compression method. Compatibility of BS with various excipients used during the study was assessed using DSC and FTIR techniques. Effect of mannitol and HPMC on drug release and bioadhesive strength was studied using a 32 factorial design. The drug release rate from delivery system decreased with increasing levels of HPMC in formulations. However, bioadhesive strength of formulations increased with increasing proportion of HPMC in buccal discs. Increased levels of mannitol resulted in faster rate of drug release and rapid in vitro uptake of water due to the formation of channels in the matrix. Pharmacokinetic studies of designed bioadhesive buccal discs in rabbits demonstrated a 10-fold increase in bioavailability in comparison with oral bioavailability of buspirone reported.
Collapse
Affiliation(s)
- A Jaipal
- Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan, India
| | - M M Pandey
- Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan, India
| | - S Y Charde
- Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan, India ; Department of Pharmacy, Birla Institute of Technology and Science Pilani, Hyderabad Campus, India
| | - P P Raut
- Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan, India
| | - K V Prasanth
- Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan, India
| | - R G Prasad
- Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan, India
| |
Collapse
|
28
|
Shojaee S, Kaialy W, Cumming KI, Nokhodchi A. Comparative evaluation of drug release from aged prolonged polyethylene oxide tablet matrices: effect of excipient and drug type. Pharm Dev Technol 2014; 21:189-95. [PMID: 25410967 DOI: 10.3109/10837450.2014.982823] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Polyethylene oxide (PEO) undergoes structural adjustments caused by elevated temperatures, which results in loss of its stability within direct compression tablets. The aim of this study was to evaluate the influence of filler solubility on the drug delivery process of matrix tablets containing drugs with different water-solubility properties and stored at elevated temperature. The results demonstrated that in the case of propranolol HCl (highly water-soluble) tablet matrices, soluble lactose promoted drug release, whereas, a stable release of drug was observed with insoluble DCP. A drug release pattern similar to the propranolol HCl formulation containing DCP was obtained for hydrophilic matrix tablets containing either lactose or DCP for the less water-soluble drug, zonisamide. In the case of the partially water-soluble drug, theophylline, formulated with lower molecular weight PEO 750, drug release increased considerably in the presence of both fillers with increasing storage time, however a stable release rate (similar to fresh samples) was observed in the case of higher molecular weight PEO 303 tablet matrices containing theophylline with either lactose or DCP. The hydration properties (e.g. solubility) of the diluents had a considerable effect on drug release behavior from various model matrices; this effect was dependent on both molecular weight of PEO and solubility of drug.
Collapse
Affiliation(s)
- Saeed Shojaee
- a Chemistry and Drug Delivery Group, Medway School of Pharmacy , University of Kent , Kent , UK
| | - Waseem Kaialy
- b Faculty of Science and Engineering, School of Pharmacy , University of Wolverhampton , Wolverhampton , UK , and
| | - Kenneth Iain Cumming
- a Chemistry and Drug Delivery Group, Medway School of Pharmacy , University of Kent , Kent , UK
| | - Ali Nokhodchi
- c School of Life Sciences , University of Sussex , Brighton , UK
| |
Collapse
|
29
|
Sustained and controlled release of lipophilic drugs from a self-assembling amphiphilic peptide hydrogel. Int J Pharm 2014; 474:103-11. [PMID: 25148727 DOI: 10.1016/j.ijpharm.2014.08.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 08/12/2014] [Accepted: 08/14/2014] [Indexed: 01/27/2023]
Abstract
Materials which undergo self-assembly to form supramolecular structures can provide alternative strategies to drug loading problems in controlled release application. RADA 16 is a simple and versatile self-assembling peptide with a designed structure formed of two distinct surfaces, one hydrophilic and one hydrophobic that are positioned in such a well-ordered fashion allowing precise assembly into a predetermined organization. A "smart" architecture in nanostructures can represent a good opportunity to use RADA16 as a carrier system for hydrophobic drugs solving problems of drugs delivery. In this work, we have investigated the diffusion properties of Pindolol, Quinine and Timolol maleate from RADA16 in PBS and in BSS-PLUS at 37°C. A sustained, controlled, reproducible and efficient drug release has been detected for all the systems, which allows to understand the dependence of release kinetics on the physicochemical characteristics of RADA16 structural and chemical properties of the selected drugs and the nature of solvents used. For the analysis various physicochemical characterization techniques were used in order to investigate the state of the peptide before and after the drugs were added. Not only does RADA16 optimise drug performance, but it can also provide a solution for drug delivery issues associated with lipophilic drugs.
Collapse
|
30
|
Preparation and drug release properties of chitosan/organomodified palygorskite microspheres. Int J Biol Macromol 2014; 68:107-12. [DOI: 10.1016/j.ijbiomac.2014.04.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 03/29/2014] [Accepted: 04/17/2014] [Indexed: 11/23/2022]
|
31
|
Ahmed S, El-Setouhy DA, El-Latif Badawi AA, El-Nabarawi MA. Provesicular granisetron hydrochloride buccal formulations: in vitro evaluation and preliminary investigation of in vivo performance. Eur J Pharm Sci 2014; 60:10-23. [PMID: 24793896 DOI: 10.1016/j.ejps.2014.04.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Revised: 02/12/2014] [Accepted: 04/15/2014] [Indexed: 01/14/2023]
Abstract
Granisetron hydrochloride (granisetron) is a potent antiemetic that has been proven to be effective in acute and delayed emesis in cancer chemotherapy. Granisetron suffers from reduced oral bioavailability (≈60%) due to hepatic metabolism. In this study the combined advantage of provesicular carriers and buccal drug delivery has been explored aiming to sustain effect and improve bioavailability of granisetron via development of granisetron provesicular buccoadhesive tablets with suitable quality characteristics (hardness, drug content, in vitro release pattern, exvivo bioadhesion and in vivo bioadhesion behavior). Composition of the reconstituted niosomes from different prepared provesicular carriers regarding type of surfactant used and cholesterol concentration significantly affected both entrapment efficiency (%EE) and vesicle size. Span 80 proniosome-derived niosomes exhibited higher encapsulation efficiency and smaller particle size than those derived from span 20. Also, the effect of %EE and bioadhesive polymer type on in vitro drug release and in vivo performance of buccoadhesive tablets was investigated. Based on achievement of required in vitro release pattern (20-30% at 2h, 40-65% at 6h and 80-95% at 12h), in vivo swelling behavior, and in vivo adhesion time (>14 h) granisetron formulation (F19, 1.4 mg) comprising HPMC:carbopol 974P (7:3) and maltodextrin coated with the vesicular precursors span 80 and cholesterol (9:1) was chosen for in vivo study. In vivo pharmacokinetic study revealed higher bioavailability of buccal formulation relative to conventional oral formulation of granisetron (AUC0-∞ is 89.97 and 38.18 ng h/ml for buccal and oral formulation, respectively). A significantly lower and delayed Cmax (12.09±4.47 ng/ml, at 8h) was observed after buccal application compared to conventional oral tablet (31.66±10.15 ng/ml, at 0.5 h). The prepared provesicular buccoadhesive tablet of granisetron (F19) might help bypass hepatic first-pass metabolism and improve bioavailability of granisetron with the possibility of reducing reported daily dose (2mg) and reducing dosing frequency.
Collapse
Affiliation(s)
- Sami Ahmed
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Egypt
| | - Doaa Ahmed El-Setouhy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Egypt.
| | - Alia Abd El-Latif Badawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Egypt
| | | |
Collapse
|
32
|
Kassem MA, ElMeshad AN, Fares AR. Enhanced bioavailability of buspirone hydrochloride via cup and core buccal tablets: Formulation and in vitro/in vivo evaluation. Int J Pharm 2014; 463:68-80. [DOI: 10.1016/j.ijpharm.2014.01.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 12/30/2013] [Accepted: 01/02/2014] [Indexed: 11/16/2022]
|
33
|
Mortazavian E, Dorkoosh FA, Rafiee-Tehrani M. Design, characterization and ex vivo evaluation of chitosan film integrating of insulin nanoparticles composed of thiolated chitosan derivative for buccal delivery of insulin. Drug Dev Ind Pharm 2014; 40:691-8. [PMID: 24524272 DOI: 10.3109/03639045.2014.886590] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of this study is to optimize and characterize of chitosan buccal film for delivery of insulin nanoparticles that were prepared from thiolated dimethyl ethyl chitosan (DMEC-Cys). Insulin nanoparticles composed of chitosan and dimethyl ethyl chitosan (DMEC) were also prepared as control groups. The release of insulin from nanoparticles was studied in vitro in phosphate buffer solution (PBS) pH 7.4. Optimization of chitosan buccal films has been carried out by central composite design (CCD) response surface methodology. Independent variables were different amounts of chitosan and glycerol as mucoadhesive polymer and plasticizer, respectively. Tensile strength and bioadhesion force were considered as dependent variables. Ex vivo study was performed on excised rabbit buccal mucosa. Optimized insulin nanoparticles were obtained with acceptable physicochemical properties. In vitro release profile of insulin nanoparticles revealed that the highest solubility of nanoparticles in aqueous media is related to DMEC-Cys nanoparticles. CCD showed that optimized buccal film containing 4% chitosan and 10% glycerol has 5.81 kg/mm(2) tensile strength and 2.47 N bioadhesion forces. Results of ex vivo study demonstrated that permeation of insulin nanoparticles through rabbit buccal mucosa is 17.1, 67.89 and 97.18% for chitosan, DMEC and DMEC-Cys nanoparticles, respectively. Thus, this study suggests that DMEC-Cys can act as a potential enhancer for buccal delivery of insulin.
Collapse
Affiliation(s)
- Elaheh Mortazavian
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences , Tehran , Iran
| | | | | |
Collapse
|
34
|
Jones E, Ojewole E, Pillay V, Kumar P, Rambharose S, Govender T. Monolayered multipolymeric buccal films with drug and polymers of opposing solubilities for ARV therapy: Physico-mechanical evaluation and molecular mechanics modelling. Int J Pharm 2013; 455:197-212. [DOI: 10.1016/j.ijpharm.2013.07.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 07/13/2013] [Accepted: 07/15/2013] [Indexed: 10/26/2022]
|
35
|
Zhu Z, Zhai Y, Zhang N, Leng D, Ding P. The development of polycarbophil as a bioadhesive material in pharmacy. Asian J Pharm Sci 2013. [DOI: 10.1016/j.ajps.2013.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
36
|
Men J, Gao B, Wang R, Li C. CPVA Grafted Poly(sodium 4-styrene sulfonate) and Studies on its Colon Specific for Chronotherapy of Nocturnal Asthma. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.829671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
37
|
|
38
|
Prasanna RI, Anitha P, Chetty CM. Formulation and evaluation of bucco-adhesive tablets of sumatriptan succinate. Int J Pharm Investig 2012; 1:182-91. [PMID: 23071941 PMCID: PMC3465137 DOI: 10.4103/2230-973x.85971] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background: A novel aspiration in treatment of migraine, to provide greater therapeutic effect, overcome the side effects by complex therapeutic regimen and to improve patient compliance upon administering bucco-adhesive tablet formulations of sumatriptan succinate which have not been tested literally. Materials and Methods: This study was designed to develop a bucco-adhesive tablet containing sumatriptan succinate using blends of different bio-adhesive polymeric combinations such as hydroxy propyl methyl cellulose K4M, sodium carboxy methyl cellulose, and Carbopol 934P with a backing layer of ethyl cellulose by a direct compression technique. Tablets were subjected to physico-chemical parameters, swelling index, surface pH, ex vivo bioadhesive force, in vitro drug release, ex vivo drug permeation, and stability in saliva. Results: Good results were obtained in all the evaluated parameters. The drug release of all formulation follows zero-order kinetics by a diffusion mechanism type. Stability studies in human saliva, ex vivo buccal permeation studies by using sheep and porcine buccal mucosa were carried out for the optimized formulation (S4 CP:HPMC 3:1). Conclusion: The developed buccal drug delivery system containing sumatriptan succinate might be the alternative routes available to bypass the first pass metabolism and might be a milestone in the therapy of migraine and among all formulations S4 shows good controlled release results correlated with ex vivo permeation studies.
Collapse
Affiliation(s)
- R Indira Prasanna
- Department of Pharmaceutics, Annamacharya College of Pharmacy, Rajampet, Andhra Pradesh, India
| | | | | |
Collapse
|
39
|
Shaikh RP, Pillay V, Choonara YE, Du Toit LC, Ndesendo VMK, Kumar P, Khan RA. The application of a crosslinked pectin-based wafer matrix for gradual buccal drug delivery. J Biomed Mater Res B Appl Biomater 2012; 100:1029-43. [PMID: 22323418 DOI: 10.1002/jbm.b.32668] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 10/20/2011] [Accepted: 11/13/2011] [Indexed: 11/09/2022]
Abstract
The purpose of this study was to develop crosslinked wafer matrices and establish the influence of the crosslinker type and processing sequence on achieving gradual buccal drug delivery. Three sets of drug-loaded crosslinked pectin wafers were produced employing the model water-soluble antihistamine, diphenhydramine and were compared with noncrosslinked wafers. The formulations were crosslinked with CaCl(2), BaCl(2), or ZnSO(4) pre- or postlyophilization (sets 1 and 2) as well as pre- and postlyophilization (set 3), respectively. The surface morphology, porositometry, molecular vibrational transitions, textural attributes, thermal and in vitro drug release were characterized and supported by in silico molecular mechanics simulations. Results revealed that crosslinked wafers produced smaller pore sizes (107.63 Å) compared with noncrosslinked matrices (180.53 Å) due to molecular crosslinks formed between pectin chains. Drug release performance was dependent on the wafer crosslinking production sequence. Noncrosslinked wafers displayed burst-release with 82% drug released at t(30min) compared with first-order kinetic profiles obtained for prelyophilized crosslinked matrices (50% released at t(30min) followed by steady release). Wafers crosslinked postlyophilization displayed superior control of drug release (40% at t(30min)). Molecular mechanics simulations corroborated with the experimental data and established that Ba(++), having the largest atomic radii (1.35 Å) formed a number of ionic bridges producing wafers of higher porosity (0.048 cm(2)/g) and had more influence on drug release.
Collapse
Affiliation(s)
- Rubina P Shaikh
- Faculty of Health Sciences, Department of Pharmacy and Pharmacology, University of the Witwatersrand, Parktown, Johannesburg 2193, South Africa
| | | | | | | | | | | | | |
Collapse
|
40
|
Shaikh R, Raj Singh TR, Garland MJ, Woolfson AD, Donnelly RF. Mucoadhesive drug delivery systems. J Pharm Bioallied Sci 2011; 3:89-100. [PMID: 21430958 PMCID: PMC3053525 DOI: 10.4103/0975-7406.76478] [Citation(s) in RCA: 312] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 09/08/2010] [Accepted: 10/13/2010] [Indexed: 11/04/2022] Open
Abstract
Mucoadhesion is commonly defined as the adhesion between two materials, at least one of which is a mucosal surface. Over the past few decades, mucosal drug delivery has received a great deal of attention. Mucoadhesive dosage forms may be designed to enable prolonged retention at the site of application, providing a controlled rate of drug release for improved therapeutic outcome. Application of dosage forms to mucosal surfaces may be of benefit to drug molecules not amenable to the oral route, such as those that undergo acid degradation or extensive first-pass metabolism. The mucoadhesive ability of a dosage form is dependent upon a variety of factors, including the nature of the mucosal tissue and the physicochemical properties of the polymeric formulation. This review article aims to provide an overview of the various aspects of mucoadhesion, mucoadhesive materials, factors affecting mucoadhesion, evaluating methods, and finally various mucoadhesive drug delivery systems (buccal, nasal, ocular, gastro, vaginal, and rectal).
Collapse
Affiliation(s)
- Rahamatullah Shaikh
- Drug Delivery Group, School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | | | | | | | | |
Collapse
|
41
|
Kanjanabat S, Pongjanyakul T. Preparation and characterization of nicotine-magnesium aluminum silicate complex-loaded sodium alginate matrix tablets for buccal delivery. AAPS PharmSciTech 2011; 12:683-92. [PMID: 21594728 DOI: 10.1208/s12249-011-9633-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 05/05/2011] [Indexed: 11/30/2022] Open
Abstract
Nicotine (NCT) buccal tablets consisting of sodium alginate (SA) and nicotine-magnesium aluminum silicate (NCT-MAS) complexes acting as drug carriers were prepared using the direct compression method. The effects of the preparation pH levels of the NCT-MAS complexes and the complex/SA ratios on NCT release, permeation across mucosa, and mucoadhesive properties of the tablets were investigated. The NCT-MAS complex-loaded SA tablets had good physical properties and zero-order release kinetics of NCT, which indicate a swelling/erosion-controlled release mechanism. Measurement of unidirectional NCT release and permeation across porcine esophageal mucosa using a modified USP dissolution apparatus 2 showed that NCT delivery was controlled by the swollen gel matrix of the tablets. This matrix, which controlled drug diffusion, resulted from the molecular interactions of SA and MAS. Tablets containing the NCT-MAS complexes prepared at pH 9 showed remarkably higher NCT permeation rates than those containing the complexes prepared at acidic and neutral pH levels. Larger amounts of SA in the tablets decreased NCT release and permeation rates. Additionally, the presence of SA could enhance the mucoadhesive properties of the tablets. These findings suggest that SA plays the important role not only in controlling release and permeation of NCT but also for enhancing the mucoadhesive properties of the NCT-MAS complex-loaded SA tablets, and these tablets demonstrate a promising buccal delivery system for NCT.
Collapse
|
42
|
Kaur A, Kaur G. Mucoadhesive buccal patches based on interpolymer complexes of chitosan-pectin for delivery of carvedilol. Saudi Pharm J 2011; 20:21-7. [PMID: 23960773 DOI: 10.1016/j.jsps.2011.04.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Accepted: 04/26/2011] [Indexed: 10/18/2022] Open
Abstract
The study was designed to develop bioadhesive patches of carvedilol hydrochloride using chitosan (CH) and pectin (PE) interpolymer complexes and to systematically evaluate their in vitro and in vivo performances. Mucoadhesive buccal patches of carvedilol were prepared using solvent casting method. The physicochemical interaction between CH and PE was investigated by FTIR and DSC studies. The patches were evaluated for their physical characteristics like mass variation, content uniformity, folding endurance, ex vivo mucoadhesion strength, ex vivo mucoadhesion time, surface pH, in vitro drug release, in situ release study, and in vivo bioavailability study. The swelling index of the patches was found to be proportional to the PE concentration. The surface pH of all the formulated bioadhesive patches was found to lie between 6.2 and 7.2. The optimized bioadhesive patch (C1, CH:PE 20:80) showed bioadhesive strength of 22.10 ± 0.20 g, in vitro release of 98.73% and ex vivo mucoadhesion time of 451 min with in a period of 8 h. The optimized patch demonstrated good in vitro and in vivo results. The buccal delivery of carvedilol in rabbits showed a significant improvement in bioavailability of carvedilol from patches when compared to oral route.
Collapse
Affiliation(s)
- Amanpreet Kaur
- Rayat and Bahra Institute of Pharmacy, Sahauran, Mohali, Punjab, India
| | | |
Collapse
|