Pharmacogenomic testing for clopidogrel dosage helps personalise antiplatelet therapy. Clopidogrel is an antiplatelet medication used to reduce the risk of heart attacks and strokes in patients with cardiovascular disease. Some individuals have genetic variations in the CYP2C19 gene that affect how their bodies activate the drug. Pharmacogenomic testing identifies these variants and helps healthcare providers prescribe the most appropriate medication or alternative treatment to improve cardiovascular outcomes.