Over-the-counter (OTC) medicines are sold directly to consumers without a prescription. There are approximately 800 OTC active ingredients available today that constitute more than 300,000 OTC medicines in the healthcare marketplace. They are sold in more than 750,000 retail outlets including pharmacies, grocery stores, convenience stores, mass merchandise retailers, etc. Like prescription drugs, OTC medicines are regulated by the U.S. Food and Drug Administration and are safe and effective when used as directed. The Drug Facts label instructs consumers on how to properly choose and use them. OTCs treat many common ailments including pain, fever, cough and cold, upset stomach, and allergies.