Open AccessEffect of novel mucoadhesive buccal patches of carvedilol on isoprenaline-induced tachycardia
Author(s) -
Navneet Verma,
Pronobesh Chattopadhyay
Publication year - 2014
Publication title -
journal of advanced pharmaceutical technology and research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 33
eISSN - 2231-4040
pISSN - 0976-2094
DOI - 10.4103/2231-4040.133436
Subject(s) - bioadhesive , buccal administration , isoprenaline , folding endurance , chemistry , carvedilol , chitosan , pharmacology , chromatography , polymer , ethyl cellulose , biochemistry , medicine , organic chemistry , heart failure , stimulation
The main aim of the study was designed to develop bioadhesive buccal patches of carvedilol (CR) and evaluate for isoprenaline-induced tachycardia. Buccal patches of carvedilol were prepared by using chitosan (CH), sodium salt of carboxy methyl cellulose (NaCMC), and polyvinyl alcohol (PVA) as mucoadhesive polymers. The solvent evaporation method was used for the preparation of buccal patches. The patches were evaluated for their physical characteristics like patch thickness, weight variation, content uniformity, folding endurance, surface pH, residence time, in vitro drug release, and in vivo pharmacodynamic study. The swelling index of the patches was found to be proportional to the polymer concentration, whereas surface pH of all the formulated bioadhesive patches was found to lie between neutral ranges. In-vitro release study shows that 94.75% drug was release in 8 hours from the patch, which containing 2% w/v chitosan. The folding endurance result shows good elasticity in all the patches. Application of buccal patches on buccal mucosa of rabbit shows a significant result in % inhibition of isoprenaline-induced tachycardia. Prepared buccal patches of chitosan, NaCMC, and PVA containing Carvedilol meet the ideal requirement for the delivery of cardiovascular drugs and inhibit the isoprenaline tachycardia.