Munnuri Sindhu Bharghavi
: Pharmacovigilance is defined because the science and activities regarding the detection, assessment, and prevention of adverse drug reactions in humans. Pharmacovigilance has been thought to be a kind of continual monitoring of unwanted effects and other safety-related aspects of medication, which are already placed in markets. The pharmacovigilance has been known to play a vital role in rational use of medicine, by providing information about the adverse effects possessed by the drugs generally population. this review presents briefly about the clinical trails and goal of pharmacovigilance.