Medication error (ME) might be a complicated and unwelcome topic, but it is an unfavourable preventable occurrence that occurs when a medication is used inappropriately, leading to patient morbidity and/or mortality. Medication errors can be caused by a variety of factors, including drug-related factors (e.g., similar-sounding names, low therapeutic index), patient-related factors (e.g., poor renal or hepatic function, impaired cognition, polypharmacy), and healthcare professional-related factors (e.g., cognitive biases, use of abbreviations in prescriptions and other communications). A significant ME is one that causes mortality, shifting to an intensive care unit, or lasting damage. Medical board-governed corrective actions, legal lawsuits, criminal charges, and a loss of patient trust are some of the repercussions that doctors may experience following pharmaceutical errors. There has been mixed effectiveness in preventing prescription errors through the use of information technology, improved drug labelling, and medication reconciliation, among other strategies. For every significant ME, a root cause investigation must be performed. Acquiring knowledge regarding drug errors could potentially improve the ability of medical practitioners to treat patients safely.