Formulation, Characterization and Release Behaviour of Metformin Hydrochloride Modified Release Tablet by Using Hydrophilic Polymers
J. Thirumaran *
Department of Pharmaceutics, Nandha College of Pharmacy, Erode, Tamil Nadu, India.
S. Tamilarasi
Department of Pharmaceutics, Nandha College of Pharmacy, Erode, Tamil Nadu, India.
S. Punitha
Department of Pharmaceutics, Nandha College of Pharmacy, Erode, Tamil Nadu, India.
T. Sivakumar
Department of Pharmaceutics, Nandha College of Pharmacy, Erode, Tamil Nadu, India.
C. N. Marimuthu
Nandha Engineering College, Erode, Tamil Nadu, India.
D. Kiruthika
Nandha College of Physiotherapy, Erode, Tamil Nadu, India.
*Author to whom correspondence should be addressed.
Abstract
Amongst the many public health problems, the diabetes mellitus is considered as a chronic life-style related disease which is now growing as an epidemic in both developed as well as developing countries. The current study is about formulation of metformin hydrochloride tablet to confirm their sustained release property by using various polymers. The tablets are prepared by granulation techniques using binding solution containing polyvinyl pyrolline K30. The possible interaction between the pure metformin hydrochloride and polymers are identified by Fourier transform-infrared spectroscopy. Tablets were formulated with different polymers like Hydroxy propyl methyl cellulose K100 and sodium carboxymethyl cellulose. Matrix prepared with high concentration of HPMC K100 polymer retards the drug release up to 6 h at 59 %, but the formulation 2 (F2) showed 72.72% of drug release in 6 h. The release of drug from the F2 formulation was found to be prolonged drug release when compared to other formulations. Hence our study conclude that the HPMC K100 polymer containing formulation showed good sustained release property owing to the high gel strength and well high viscosity nature of the polymer.
Keywords: Metformin hydrochloride, HPMC K 100, PVP K 30, CMC, sustained release tablet