10.22376/ijpbs.2019.10.1.p1-12 Volume 2 Issue 2 2011 (April - June) Three simple and sensitive spectrophotometric methods have been developed for the estimation of Clopidogrel (CLP) in pure and pharmaceutical dosage forms. This method is based on the formation of ion-pair complexes of the drug with acidic dye Solochrome black T (SBT : λmax 510 nm) , This method is based on Oxidation of the drug with Phenanthroline (Fe(III)/PTL: λmax 515 nm) and This method is based on oxidation followed by complex formation when the drug reacts with potassium permanganate (KMnO lessThan sub greaterThan 4 lessThan /sub greaterThan λ lessThan sub greaterThan max lessThan /sub greaterThan 410nm). These methods have been statistically evaluated and found to be precise and accurate. B. Anupama, V. Jagathi, A. Aparna, M. Madhubabu And V. Lakshmi Annapurna Clopidogrel , Solochrome black T, Phenanthroline , potassium permanganate 105-108