Table of Contents Author Guidelines
Journal of Pharmaceutics
Volume 2018, Article ID 7916368, 7 pages
Research Article

In Vitro and In Vivo Quality Evaluation of Glibenclamide Tablets Marketed in Addis Ababa, Ethiopia

1Department of Pharmacy, College of Health Sciences, Wollo University, P.O. Box. 1145, Dessie, Ethiopia
2Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, P.O. Box. 1176, Addis Ababa, Ethiopia

Correspondence should be addressed to Ayenew Ashenef; te.ude.uaa@fenehsa.weneya

Received 14 May 2018; Accepted 26 June 2018; Published 18 July 2018

Academic Editor: Srinivas Mutalik

Copyright © 2018 Haile Kassahun et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Good quality drugs fulfilling the regulatory parameters and produced per the current good manufacturing (CGMP) standards are very critical for best therapeutic outcome in patient therapy. Hence, this study assesses quality as well as physicochemical bioequivalence of five brands of glibenclamide tablets marketed in Addis Ababa using in vitro and in vivo methods. Friability, disintegration, dissolution, and assay for the content of active ingredients were evaluated using the methods described in the British Pharmacopeia (2009) and United States Pharmacopeia (2007). All the brands of glibenclamide tablets complied with the official specification for hardness, friability, disintegration, and assay. Difference factor (f1) values were less than 15 and similarity factor (f2) values were greater than 50 for all products of glibenclamide. The hypoglycemic effect of different products of glibenclamide tablets was evaluated on normoglycemic mice. The in vivo studies indicated that there is no significant difference in percent reduction of blood glucose level between the brands of glibenclamide and the innovator product (p > 0.05). Hence, based on the in vivo results and in vitro dissolution studies, the brands might be substituted with the innovator product in clinical practice.