Formulation and In vitro Release Characterization of Metoprolol Succinate Extended Release Tablets
DOI:
https://doi.org/10.37285/ijpsn.2011.4.4.3Abstract
The present study was aimed to develop an extended release tablet of metoprolol Succinate for the treatment of hypertension. Four extended release formulations F1-F4 were developed using varying proportions of hydroxylpropyl-methylcellulose K100M, sodium carboxy methyl cellulose and Eudragit L30 D55 by wet granulation. Five extended release formulations F5-F9 containing HPMC K100M and HPMC 5 cps in varying concentration were developed by direct compression. The physicochemical and in vitro release characteristics of all the formulations were investigated and compared. Two formulations, F7 and F8 have shown not more 25% drug release in 1st h, 20%-40% drug release at 4th hour, 40%-60% drug release at 8th hour and not less than 80% at 20th hour and the release pattern conform with USP specification for 24 hours extended release formulation. It can be conclusively stated that optimum concentration of HPMC K100M (58%-65%) by direct compression method can yield an extended release of metoprolol succinate for 24 hours.
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Keywords:
Metoprolol succinate, HPMC, CMC Na, Eudragit L30 D55, extended release
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References
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