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Formulation, Optimization and In-Vitro Evaluation of Sustained Release Matrix Tablets of Tramadol Hydrochloride

Abstract The objective of this work was to develop sustained release tablets (Once in a day) of highly water soluble Tramadol HCl using hydrophilic polymers (HPMC K100M, HPMC K15M, HPMC K 4M) as cost effective, non toxic easily available and suitable hydrophilic matrix system. Sustained release tablet of Tramadol HCl (dose 200mg) were produced by…