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Original Article

J App Pharm Sci. 2015; 5(4): 058-064


Development of Enteric Coated Sustained Release Matrix Tablets of Sertraline Hydrochloride

Pravallika Uppala, Salma shaik, Saisri Anusha Valluru, Buchi N Nalluri.

Abstract
The aim of the present investigation is to develop enteric coated sustained release matrix tablets of Sertraline hydrochloride (STH) using HPMC K4M and Carbopol-971 as drug release retardants and cellulose acetate phthalate (CAP) as an enteric coating polymer. The tablets were prepared by direct compression process and evaluated for various physico-chemical/mechanical parameters. Among the two release retardants, HPMC K4M was selected based on controlling the STH release during dissolution. The effect of different fillers like microcrystalline cellulose (MCC), di calcium phosphate (DCP), spray dried lactose with maize starch (SDL) and pre gelatinized starch (PGS), on STH release was also studied. The percent of STH release at the end of dissolution with different fillers is in the order of SDL > MCC > DCP > PGS. The tablets containing 15%w/w of HPMC K4M & MCC as filler with 5% coating weight gain (1% v/v glycerine in 5%w/v CAP solution) gave a STH release of less than 10% in 0.1N HCl (pH 1.2) for 2 h and a controlled the release of STH over a period of 12 h (99.170.54%) in pH 6.8 phosphate buffer and fulfils the regulatory requirements. The dissolution data was also evaluated for drug release kinetics and mechanisms.

Key words: Key words: Sertraline hydrochloride, Sustained release, enteric coated tablets, in vitro drug release studies



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