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Alhallak M, Karpukhina N, Patel M. Triamcinolone acetonide release modelling from novel bilayer mucoadhesive films: an in vitro study. Dent Mater 2023:S0109-5641(23)00094-5. [PMID: 37150730 DOI: 10.1016/j.dental.2023.04.005] [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: 11/17/2022] [Accepted: 04/20/2023] [Indexed: 05/09/2023]
Abstract
OBJECTIVES Recurrent aphthous stomatitis (RAS) is a painful disorder that commonly appears as ulcers on the oral mucosa, lasting ∼two weeks (minor) to months (major and herpetiform). Current treatment often necessitates the use of topical steroids in the form of pastes, mouthwashes, or gels, but these forms are often ineffective due to inadequate drug contact time with the ulcers. In this study, the performance of novel bilayer mucoadhesive buccal films loaded with triamcinolone acetonide (TA) has been evaluated for targeted drug delivery. METHODS Experimental mucoadhesive films of hydroxypropyl methylcellulose (HPMC), polyvinyl alcohol (PVA), and polyvinyl pyrrolidone (PVP) were prepared by the solvent casting method, and ethyl cellulose (EC) was applied as the backing layer. The films were characterized for their physical properties, including swelling index (SI), folding endurance, adhesion force with porcine buccal mucosa, residence time and in-vitro drug release. RESULTS The data showed that the films were flexible with folding endurance> 300 times. With porcine buccal mucosa i) suitable adhesion forces were obtained (between 2.72 and 4.03 N), ii) residence times of> 24 h, and iii) surface pH between 6.8 and 7.1 indicating they would be non-irritant. All films released 100% TA over 6 h, but with varying profiles. The release of TA (over 6 h) from PVP-free films followed Fickian diffusion kinetics (diffusion-controlled release of drug), whereas the mechanism of release from PVP-containing films was found to be a superposition of diffusion-controlled and erosion-controlled release (anomalous). SIGNIFICANCE The developed films hold great promise for potentially treating RAS and other oral conditions.
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Affiliation(s)
- Muhannad Alhallak
- Dental Physical Science Unit, Faculty of Medicine and Dentistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
| | - Natalia Karpukhina
- Dental Physical Science Unit, Faculty of Medicine and Dentistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Mangala Patel
- Dental Physical Science Unit, Faculty of Medicine and Dentistry, Queen Mary University of London, Mile End Road, London E1 4NS, UK
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Permeability of Buccal Mucosa. Pharmaceutics 2021; 13:pharmaceutics13111814. [PMID: 34834229 PMCID: PMC8624797 DOI: 10.3390/pharmaceutics13111814] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/18/2021] [Accepted: 10/23/2021] [Indexed: 11/23/2022] Open
Abstract
The buccal mucosa provides an alternative route of drug delivery that can be more beneficial compared to other administration routes. Although numerous studies and reviews have been published on buccal drug delivery, an extensive review of the permeability data is not available. Understanding the buccal mucosa barrier could provide insights into the approaches to effective drug delivery and optimization of dosage forms. This paper provides a review on the permeability of the buccal mucosa. The intrinsic permeability coefficients of porcine buccal mucosa were collected. Large variability was observed among the published permeability data. The permeability coefficients were then analyzed using a model involving parallel lipoidal and polar transport pathways. For the lipoidal pathway, a correlation was observed between the permeability coefficients and permeant octanol/water partition coefficients (Kow) and molecular weight (MW) in a subset of the permeability data under specific conditions. The permeability analysis suggested that the buccal permeation barrier was less lipophilic than octanol. For the polar pathway and macromolecules, a correlation was observed between the permeability coefficients and permeant MW. The hindered transport analysis suggested an effective pore radius of 1.5 to 3 nm for the buccal membrane barrier.
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Kotadiya R, Shah K. Development of Bioadhesive Buccal Tablets of Nicorandil Using a Factorial Approach. Turk J Pharm Sci 2020; 17:388-397. [PMID: 32939134 DOI: 10.4274/tjps.galenos.2019.09226] [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: 04/30/2019] [Accepted: 07/18/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVES In the present investigation, bioadhesive buccal tablets were prepared using the sustained-release polymer hydroxypropyl methylcellulose (HPMC) K100M, bioadhesive polymer neem gum, and an impervious backing layer of ethyl cellulose. Nicorandil is sensitive to the first-pass effect; therefore, a buccal-adhesive dosage form can avoid this effect. MATERIALS AND METHODS We used the direct compression technique to prepare the tablet formulation. A 32 full factorial design was composed in which the amounts of HPMC K100M (X1) and neem gum (X2) were chosen as the independent variables and the dependent variables were the percentage drug release at 6 h (Y1) and mucoadhesive strength in grams (Y2). Various in vitro parameters, i.e. thickness, friability, hardness, weight variation, surface pH, moisture absorption ratio, dissolution studies, and drug release kinetics, and ex vivo parameters like mucoadhesive strength and mucoadhesion time were determined for the prepared tablets. We subjected the optimized batch to a comparison with the marketed formulation and stability studies were performed. RESULTS The formulation containing a 50:50 ratio of neem gum and HPMC K100M (F5) was considered optimum. The zero-order release kinetics model best fitted the optimized batch release profile, suggesting the system would release the drug at a constant rate. CONCLUSION The release by the optimized formulation of the drug at a sustained rate along with its bioadhesive nature showed that the buccal route can be an option for the administration of nicorandil.
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Affiliation(s)
- Rajendra Kotadiya
- Charotar University of Science and Technology, Ramanbhai Patel College of Pharmacy, Changa, India
| | - Karan Shah
- Sigma Institute of Pharmacy, Vadodara, India
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Laffleur F, Krouská J, Tkacz J, Pekař M, Aghai F, Netsomboon K. Buccal adhesive films with moisturizer- the next level for dry mouth syndrome? Int J Pharm 2018; 550:309-315. [PMID: 30125650 DOI: 10.1016/j.ijpharm.2018.08.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 07/26/2018] [Accepted: 08/14/2018] [Indexed: 12/17/2022]
Abstract
This study was undertaken to prepare films by solvent evaporation method comprising well-known polymers in order to investigate their potential for buccal suitability. Mucoadhesive films were manufactured using different polymers such as ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose as well as carboxymethyl cellulose. Buccal films were evaluated in regards of mucoadhesiveness, swelling and physico-chemical properties. Furthermore rheological measurement and adhesion study were carried out on the buccal porcine mucosa. Moreover, allantoin as humectant was incorporated and trans-mucosal water loss was determined. The results showed that physico-chemical, buccal adhesive and swelling properties varied depending on the composition of the polymers. The findings indicated films containing allantoin to be suitable for buccal application. In completion, adhesive films are appropriate and promising formulations in the treatment of various disease in the intraoral cavity.
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Affiliation(s)
- Flavia Laffleur
- Department of Pharmaceutical Technology, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Austria; Massachusetts Institute of Technology, Koch Institute for Integrative Cancer Research at MIT, Langer Lab, 77 Massachusetts Ave, Cambridge, MA 02139, USA.
| | - Jitka Krouská
- Brno University of Technology, Faculty of Chemistry, Centre for Materials Research, Purkyňova 118, 612 00 Brno, Czech Republic
| | - Jakub Tkacz
- Brno University of Technology, Faculty of Chemistry, Centre for Materials Research, Purkyňova 118, 612 00 Brno, Czech Republic
| | - Miloslav Pekař
- Brno University of Technology, Faculty of Chemistry, Centre for Materials Research, Purkyňova 118, 612 00 Brno, Czech Republic
| | - Farid Aghai
- Department of Pharmaceutical Technology, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Austria
| | - Kesinee Netsomboon
- Department of Pharmaceutical Technology, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Austria; Division of Pharmaceutical Sciences, Faculty of Pharmacy, Thammasat University, Rungsit campus, Phahonyothin Rd., Khlong Luang, Pathumthani 12120, Thailand
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Sarwal A, Singh G, Singh S, Singh K, Sinha VR. Novel and effectual delivery of an antifungal agent for the treatment of persistent vulvovaginal candidiasis. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2018. [DOI: 10.1007/s40005-018-0395-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Taymouri S, Varshosaz J. Effect of different types of surfactants on the physical properties and stability of carvedilol nano-niosomes. Adv Biomed Res 2016; 5:48. [PMID: 27110545 PMCID: PMC4817389 DOI: 10.4103/2277-9175.178781] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 07/28/2014] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Niosomes are non-ionic surfactant vesicles used as drug carriers for encapsulating both hydrophobic and hydrophilic drugs. The aim of this study is to evaluate the effect of different surfactants on the physical properties and stability of carvedilol niosomes designed to improve oral bioavailability. MATERIALS AND METHODS Different niosomal formulations were prepared using a film hydration method, with various mixtures of different non-ionic surfactants including Span 20, 40, and 60, and also Tween 20, 40, and 60, along with cholesterol. The physicochemical characteristics of the formulations were evaluated in vitro. RESULTS The drug encapsulation efficiency was reduced by using lauryl (C12) chain containing surfactants, that is, Span/Tween. Cholesterol content and drug entrapment were the main factors affecting the mean particle size of the niosomes. The drug release profiles from most of the formulations were fitted well with the Baker-Lonsdale model, indicating a diffusion-based drug release mechanism. Niosomes prepared from 50 and 40% of the cholesterol with 25 or 30% of Span/Tween 60 showed the highest stability due to their high transition temperature and solid state feature of these surfactants. CONCLUSIONS From the results obtained, it may be concluded that nanoniosomes are promising stable carriers for the oral delivery of carvedilol.
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Affiliation(s)
- Somayeh Taymouri
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jaleh Varshosaz
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
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Palem CR, Dudhipala N, Battu SK, Goda S, Repka MA, Yamsani MR. Combined dosage form of pioglitazone and felodipine as mucoadhesive pellets via hot melt extrusion for improved buccal delivery with application of quality by design approach. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.10.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ikram M, Gilhotra N, Gilhotra RM. Formulation and optimization of mucoadhesive buccal patches of losartan potassium by using response surface methodology. Adv Biomed Res 2015; 4:239. [PMID: 26682205 PMCID: PMC4673708 DOI: 10.4103/2277-9175.168606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 06/14/2015] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND This study was undertaken with an aim to systematically design a model of factors that would yield an optimized sustained release dosage form of an anti-hypertensive agent, losartan potassium, using response surface methodology (RSM) by employing 3(2) full factorial design. MATERIALS AND METHODS Mucoadhesive buccal patches were prepared using different grades of hydroxypropyl methylcellulose (HPMC) (K4M and K100M) and polyvinylpyrrolidone-K30 by solvent casting method. The amount of the release retardant polymers - HPMC K4M (X1) and HPMC K100M (X2) was taken as an independent variable. The dependent variables were the burst release in 30 min (Y1), cumulative percentage release of drug after 8 h (Y2) and swelling index (Y3) of the patches. In vitro release and swelling studies were carried out and the data were fitted to kinetic equations. RESULTS The physicochemical, bioadhesive, and swelling properties of patches were found to vary significantly depending on the viscosity of the polymers and their combination. Patches showed an initial burst release preceding a more gradual sustained release phase following a nonfickian diffusion process. DISCUSSION The results indicate that suitable bioadhesive buccal patches with desired permeability could be prepared, facilitated with the RSM.
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Affiliation(s)
- Md. Ikram
- School of Pharmacy, Suresh Gyan Vihar University, Jaipur, Rajasthan, India
| | - Neeraj Gilhotra
- Department of Pharmacy, Maharshi Dayanand University, Rohtak, Haryana, India
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Aljimaee YHM, El-Helw ARM, Ahmed OAA, El-Say KM. Development and optimization of carvedilol orodispersible tablets: enhancement of pharmacokinetic parameters in rabbits. Drug Des Devel Ther 2015; 9:1379-92. [PMID: 25834396 PMCID: PMC4357615 DOI: 10.2147/dddt.s80294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Carvedilol (CVD) is used for the treatment of essential hypertension, heart failure, and systolic dysfunction after myocardial infarction. Due to its lower aqueous solubility and extensive first-pass metabolism, the absolute bioavailability of CVD does not exceed 30%. To overcome these drawbacks, the objective of this work was to improve the solubility and onset of action of CVD through complexation with hydroxypropyl-β-cyclodextrin and formulation of the prepared complex as orodispersible tablets (ODTs). METHODS Compatibility among CVD and all tablet excipients using differential scanning calorimetry and Fourier transform infrared spectroscopy, complexation of CVD with different polymers, and determination of the solubility of CVD in the prepared complexes were first determined. A Box-Behnken design (BBD) was used to study the effect of tablet formulation variables on the characteristics of the prepared tablets and to optimize preparation conditions. According to BBD design, 15 formulations of CVD-ODTs were prepared by direct compression and then evaluated for their quality attributes. The relative pharmacokinetic parameters of the optimized CVD-ODTs were compared with those of the marketed CVD tablet. A single dose, equivalent to 2.5 mg/kg CVD, was administered orally to New Zealand white rabbits using a double-blind, randomized, crossover design. RESULTS The solubility of CVD was improved from 7.32 to 22.92 mg/mL after complexation with hydroxypropyl-β-cyclodextrin at a molar ratio of 1:2 (CVD to cyclodextrin). The formulated CVD-ODTs showed satisfactory results concerning tablet hardness (5.35 kg/cm(2)), disintegration time (18 seconds), and maximum amount of CVD released (99.72%). The pharmacokinetic data for the optimized CVD-ODT showed a significant (P<0.05) increase in maximum plasma concentration from 363.667 to 496.4 ng/mL, and a shortening of the time taken to reach maximum plasma concentration to 2 hours in comparison with the marketed tablet. CONCLUSION The optimized CVD-ODTs showed improved oral absorption of CVD and a subsequent acceleration of clinical effect, which is favored for hypertensive and cardiac patients.
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Affiliation(s)
- Yazeed HM Aljimaee
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdel-Rahim M El-Helw
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Osama AA Ahmed
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Khalid M El-Say
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
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Kolli CS, Pather I. Characterization Methods for Oral Mucosal Drug Delivery. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1007/978-1-4899-7558-4_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Varshosaz J, Moazen E. Novel lectin-modified poly(ethylene-co-vinyl acetate) mucoadhesive nanoparticles of carvedilol: preparation andin vitrooptimization using a two-level factorial design. Pharm Dev Technol 2013; 19:605-17. [DOI: 10.3109/10837450.2013.819011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gilhotra RM, Ikram M, Srivastava S, Gilhotra N. A clinical perspective on mucoadhesive buccal drug delivery systems. J Biomed Res 2013; 28:81-97. [PMID: 24683406 PMCID: PMC3968279 DOI: 10.7555/jbr.27.20120136] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 02/03/2013] [Accepted: 03/04/2013] [Indexed: 11/23/2022] Open
Abstract
Mucoadhesion can be defined as a state in which two components, of which one is of biological origin, are held together for extended periods of time by the help of interfacial forces. Among the various transmucosal routes, buccal mucosa has excellent accessibility and relatively immobile mucosa, hence suitable for administration of retentive dosage form. The objective of this paper is to review the works done so far in the field of mucoadhesive buccal drug delivery systems (MBDDS), with a clinical perspective. Starting with a brief introduction of the mucoadhesive drug delivery systems, oral mucosa, and the theories of mucoadhesion, this article then proceeds to cover the works done so far in the field of MBDDS, categorizing them on the basis of ailments they are meant to cure. Additionally, we focus on the various patents, recent advancements, and challenges as well as the future prospects for mucoadhesive buccal drug delivery systems.
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Affiliation(s)
- Ritu M Gilhotra
- Gyan Vihar School of Pharmacy, Suresh Gyan Vihar University, Jaipur, Rajasthan 302025, India
| | - Mohd Ikram
- Gyan Vihar School of Pharmacy, Suresh Gyan Vihar University, Jaipur, Rajasthan 302025, India
| | - Sunny Srivastava
- Gyan Vihar School of Pharmacy, Suresh Gyan Vihar University, Jaipur, Rajasthan 302025, India
| | - Neeraj Gilhotra
- Faculty of Pharmacy, Maharshi Dayanand University, Rohtak, Haryana 124001, India
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Potu AR, Pujari N, Burra S, Veerareddy PR. Formulation and evaluation of buccoadhesive quetiapine fumarate tablets. BRAZ J PHARM SCI 2012. [DOI: 10.1590/s1984-82502012000200017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of present study was to develop and evaluate buccoadhesive Quetiapine Fumarate (QF) tablets, which is extensively metabolised by liver. Buccoadhesive tablets of QF were prepared using HPMC K4M, HPMC K15M and combination of carbopol and HPC as mucoadhesive polymers by direct compression method. Sodium deoxycholate was added to formulation to improve the permeation of drug. The formulations were tested for bioadhesion strength, ex vivo residence time, swelling time and in vitro dissolution studies and ex vivo permeation studies. Optimized formulation (F3) showed 92% in vitro release in 8 h and 67% permeation of drug through porcine buccal mucosa and followed fickian release mechanism with zero order kinetics. FTIR studies of optimized formulation showed no evidence of interaction between the drug and polymers. In vivo mucoadhesive behaviour of optimized formulation was performed and subjective parameters were evaluated.
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Affiliation(s)
- Appa Rao Potu
- St. Peter's Institute of Pharmaceutical Sciences, India
| | - Naresh Pujari
- St. Peter's Institute of Pharmaceutical Sciences, India
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Satheesh Madhav NV, Semwal R, Semwal DK, Semwal RB. Recent trends in oral transmucosal drug delivery systems: an emphasis on the soft palatal route. Expert Opin Drug Deliv 2012; 9:629-47. [PMID: 22512535 DOI: 10.1517/17425247.2012.679260] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
INTRODUCTION The oral mucosa is an appropriate route for drug delivery systems, as it evades first-pass metabolism, enhances drug bioavailability and provides the means for rapid drug transport to the systematic circulation. This delivery system offers a more comfortable and convenient delivery route compared with the intravenous route. Although numerous drugs have been evaluated for oral mucosal delivery, few of them are available commercially. This is due to limitations such as the high costs associated with developing such drug delivery systems. AREAS COVERED The present review covers recent developments and applications of oral transmucosal drug delivery systems. More specifically, the review focuses on the suitability of the oral soft palatal site as a new route for drug delivery systems. EXPERT OPINION The novelistic oral soft palatal platform is a promising mucoadhesive site for delivering active pharmaceuticals, both systemically and locally, and it can also serve as a smart route for the targeting of drugs to the brain.
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Makky A, El-Gendi N, El-Menshawe S, El-Akkad Y. A buccoadhesive disc as a novel drug delivery system of tenoxicam: formulation and in vitro/in vivo evaluation. J Drug Deliv Sci Technol 2012. [DOI: 10.1016/s1773-2247(12)50019-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Shah R, Patel S, Patel H, Pandey S, Shah S, Shah D. Formulation development of Carvedilol compression coated tablet. Pharm Dev Technol 2011; 18:906-15. [DOI: 10.3109/10837450.2011.598167] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Palem CR, Gannu R, Yamsani SK, Yamsani VV, Yamsani MR. Development of bioadhesive buccal tablets for felodipine and pioglitazone in combined dosage form: In vitro, ex vivo, and in vivo characterization. Drug Deliv 2011; 18:344-52. [DOI: 10.3109/10717544.2011.557786] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Movassaghian S, Barzegar-Jalali M, Alaeddini M, Hamedyazdan S, Afzalifar R, Zakeri-Milani P, Mohammadi G, Adibkia K. Development of amitriptyline buccoadhesive tablets for management of pain in dental procedures. Drug Dev Ind Pharm 2011; 37:849-54. [DOI: 10.3109/03639045.2010.546403] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Formulation development of oral controlled release tablets of hydralazine: optimization of drug release and bioadhesive characteristics. ACTA PHARMACEUTICA 2009; 59:1-13. [PMID: 19304554 DOI: 10.2478/v10007-009-0005-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The current study involves development of oral bioadhesive hydrophilic matrices of hydralazine hydrochloride, and optimization of their in vitro drug release profile and ex vivo bioadhesion against porcine gastric mucosa. A 32 central composite design was employed to systematically optimize the drug delivery formulations containing two polymers, viz., carbomer and hydroxypropyl methyl cellulose. Response surface plots were drawn and optimum formulations were selected by brute force searches. Validation of the formulation optimization study indicated a very high degree of prognostic ability. The study successfully undertook the development of an optimized once-a-day formulation of hydralazine with excellent bioadhesive and controlled release characteristics.
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