Over-the-counter (OTC) medications are drugs available for purchase without a prescription, including common pain relievers, cold medicines, antacids, and first aid supplies. Health Canada regulates which medications require prescriptions versus those available OTC, based on safety profiles and potential for misuse. OTC availability improves access to basic medications for minor ailments without requiring medical appointments. Provincial pharmacy regulations govern how OTC medications are displayed and sold. Municipal public health initiatives may involve OTC medications for first aid training, naloxone distribution, or community health programs. Understanding OTC terminology helps citizens navigate healthcare options for minor health concerns.