FORMULATION AND EVALUATION OF MUCOADHESIVE BUCCAL TABLETS OF GLIPIZIDE

Glipizide is a medication used in the treatment of type 2 diabetes. The Mucoadhesive buccal tablets were prepared by direct compression method using Sodium Alginate, HPMC K4M and SCMC as mucoadhesive polymer. The compatibility studies of drug and excipients were performed by FT-IR spectroscopy. After examining the flow properties of the powder blends the results are found to be within prescribed limits and indicated good flowing property, hence it was subjected to tablet compression. The tablets were evaluated for post compression parameters like weight variation, hardness, thickness, friability, drug content uniformity, Surface pH, in-vitro studies like drug release. Formulation (F4) containing HPMC K4M in the ratio of (1:1) showed maximum drug release of 99.46% in 8 hrs. The drug content of shown highest of 99.24 %, Surface pH was found to be 6.12. All the evaluation parameters given the positive results and comply with the standards. The results indicate that the mucoadhesive buccal tablets of Glipizide may be good choice to bypass the extensive hepatic first pass metabolism with an improvement in the bioavailability of Glipizide through buccal mucosa.

Key words:  Glipizide, Sodium Alginate, HPMC K4M, SCMC and Buccal tablets.