Abstract
ObjectiveEsomeprazole is the S-isomer of omeprazole, used to treat gastro esophageal reflux disease. It is one of the widely manufactured and marketed drugs by many pharmaceutical companies in Bangladesh. The aim of the study is to compare the different physical parameters including hardness, friability, diameter, thickness, disintegration time, dissolution test and assay for quality evaluation and characterization of tablets of five different brands of Bangladeshi pharmaceutical company. The specified compendial method was followed for their evaluation test.ResultsEsomeprazole Mg tablets are enteric coated tablet, there was no disintegration for any brand occurred in 0.1 N HCl after 2 h and all tablets were disintegrated within 19.93 ± 0.04 to 29.05 ± 0.14 min in phosphate buffer (pH 6.8). Weight variation and Hardness were between 1.01 ± 0.29 to 2.01 ± 0.14% and 5.32 ± 0.06 to 7.12 ± 0.12 kgf respectively. Medicine released after 2 h in 0.1 N HCl were varied from 2.55 ± 0.24 to 4.47 ± 0.31% which was less than 10% and in phosphate buffer (pH 6.8) the percentage of medicine release were between 100.9 and 105.9% after 60 min. In case of assay the results of all brands were between 95.28 ± 0.08 and 99.40 ± 0.11%. The obtained results of all parameters were complied with pharmacopoeial limit. So from this study we can conclude that products of esomeprazole available in Bangladeshi pharmaceutical market meet the quality parameter to satisfy therapeutic efficacy.
Highlights
Esomeprazole is a proton pump inhibitor (PPI), mainly works by preventing the formation of stomach acid through inhibition of the H+/K+ -ATPase in the parietal cells of the stomach [1, 2]
Esomeprazole Mg tablets are enteric coated tablet, there was no disintegration for any brand occurred in 0.1 N HCl after 2 h and all tablets were disintegrated within 19.93 ± 0.04 to 29.05 ± 0.14 min in phosphate buffer
Medicine released after 2 h in 0.1 N HCl were varied from 2.55 ± 0.24 to 4.47 ± 0.31% which was less than 10% and in phosphate buffer the percentage of medicine release were between 100.9 and 105.9% after 60 min
Summary
Esomeprazole Mg tablets are enteric coated tablet, there was no disintegration for any brand occurred in 0.1 N HCl after 2 h and all tablets were disintegrated within 19.93 ± 0.04 to 29.05 ± 0.14 min in phosphate buffer (pH 6.8). Medicine released after 2 h in 0.1 N HCl were varied from 2.55 ± 0.24 to 4.47 ± 0.31% which was less than 10% and in phosphate buffer (pH 6.8) the percentage of medicine release were between 100.9 and 105.9% after 60 min. In case of assay the results of all brands were between 95.28 ± 0.08 and 99.40 ± 0.11%. The obtained results of all parameters were complied with pharmacopoeial limit. From this study we can conclude that products of esomeprazole available in Bangladeshi pharmaceutical market meet the quality parameter to satisfy therapeutic efficacy
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