Over-the-counter medications

Also known as: Non-prescription medications, OTC medications
A nonprescription medicine—sometimes called an over-the-counter, or OTC, medicine—is any drug that you can buy without a doctor's prescription. But don't assume that all nonprescription drugs are safe for you. These drugs can interact with other medicines and can sometimes cause serious health problems.


Recommended Resource

U.S. Pharmacopeia

The United States Pharmacopeia (USP) is a non–governmental, official public standards–setting authority for prescription and over–the–counter medicines and other healthcare products manufactured or sold in the United States. USP also sets widely recognized standards for food ingredients and dietary supplements. USP sets standards for the quality, purity, strength, and consistency of these products–critical to the public health. USP's standards are recognized and used in more than 130 countries around the globe. These standards have helped to ensure public health throughout the world for close to 200 years.

Medline Plus Drug Information

Learn about your prescription drugs and over-the-counter medicines. Includes side effects, dosage, special precautions and more. Browse dietary supplements and herbal remedies to learn about their effectiveness, usual dosage and drug interactions.