A Study of the Compactibility Characteristics of a Direct Compression and A Wet Granulated Formulation of Norfloxacin

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Abstract
Compaction characteristics of norfloxacin tablets manufactured by both wet granulation and direct compression procedures were studied with the aid of an instrumented single punch tablet press interfaced with a digital computer. Under comparable tabletting conditions, the direct compression formulation required less compressional force than the wet granulated formulation to produce tablets of similar breaking strengths, which indicates superior compactibility. The directly compressed tablets were found to disintegrate faster and release their active component more rapidly during the critical early stages of dissolu-tion. Dissolution and disintegration of the directly compressed tablets generally were less affected by changes in breaking strengths than those compressed from granulated systems.

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