Two simple and sensitive colorimetric methods have been developed for the quantitative estimation of Amlodipine besylate (ADB) from Pharmaceutical tablet dosage form. Developed methods are based on the formation of chloroform extractable ion pair colored complex of drug with Cosneasie Brilliant Blue R (CBB, Method A) and Methyl Orange (MO, Method B). The complex formed in method A and B showed maximum absorbance at 595.5 nm and 425.5 nm respectively. Linearity was obeyed in concentration range of 5-30 µgm/ml and 20-40 µgm/ml of ADB for method A and B respectively. The results of analysis were validated statistically and by recovery studies.
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