Clopidogrel, owing to its excellent inhibitory property of platelet aggregation, is used to reduce the cardiovascular risks in patients with multiple co-morbid conditions such as stroke, myocardial infarction and atherosclerosis. The current review focuses distinctly on three aspects: (a) an in-depth coverage on the bioanalytical methods for the quantification of clopidogrel and its inactive carboxylic acid metabolite as well as the active metabolite in pre-clinical and clinical samples; (b) an overview of the pharmacokinetic/pharmacodynamic aspects of clopidogrel; and (c) enumerating the key findings from drug-drug interaction studies of clopidogrel with various co-substrates such as lanzoprazole, fluvastatin, atorvastatin, pravastatin, digoxin, ketoconazole, donezepil and theophylline.