Pharmacovigilance is the systematic monitoring and evaluation of the safety of medicines to ensure their safe and effective use by patients. It involves the detection, assessment, understanding, and prevention of adverse effects or any other drug-related problems. Pharmacovigilance activities are crucial in identifying previously unknown side effects and ensuring that the benefits of medicines outweigh their risks. This field relies on collecting and analyzing data from healthcare providers, patients, and regulatory agencies to continually assess the safety profile of medications throughout their lifecycle. Effective pharmacovigilance practices contribute to public health by informing regulatory decisions, improving patient care, and enhancing overall medication safety standards worldwide.