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Development and In vitro evaluation of mucoadhesive buccal films of nebivolol

Author(s): PP Mane1, SS Bushetti2, GG Keshavshetti3
1Indira Institute of Pharmacy, Sadavali, Sangmeshwar, Ratnagiri-415 804, India 2H. K. E. S's College of Pharmacy, M. R. Medical College Campus, Gulbarga-585 105, India 3S. V. E. T's College of Pharmacy, Humnabad-585 330, India

Correspondence Address:
P P Mane Indira Institute of Pharmacy, Sadavali (Deorukh), Sangmeshwar, Ratnagiri-415 804 India E-mail: [email protected]

Nebivolol, a cardioselective β-blocker undergoes extensive metabolism in the liver after its oral administration resulting in low bioavailability. Oral administration of nebivolol also causes gastrointestinal disturbances characterised by stomach ache. To overcome these short comings, mucoadhesive buccal films of nebivolol were prepared using different concentrations of hydroxypropyl methylcellulose and hydroxyl ethylcellulose in the ratios of 2:1, 4:1 and 6:1 and hydroxypropyl methylcellulose and methylcellulose in the ratio of 2:2, 4:3 and 6:4 by solvent casting technique. All the prepared films were found to be smooth, elegant and uniform in thickness and weight. Among the three polymer combinations used, 6:4 (BFN 6 ) showed increased in vitro residence time, which appeared to be mainly due to mucoadhesive nature of hydroxylpropyl methylcellulose and methylcellulose. Evaluation of the films showed uniform dispersion of the drug throughout the formulation (96.21±0.71 to 97.02±0.12%). In vitro drug release studies showed better results at the end of 8 h. The release profile of all the formulations was subjected to kinetic analyses, which suggested that the drug was released by diffusion mechanism following super case-II transport.

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