Knowra Over-the-counter drug Over-the-counter drug An over-the-counter drug is a medicine approved for purchase without a prescription when used according to its labeling. Its availability depends on regulatory classification and specified conditions of use.
Prescription drug : A medicine whose dispensing requires authorization from a licensed prescriber. It is the regulated alternative when a medicine’s risks or use require professional oversight.
Self-medication : The use of medicines by individuals to treat symptoms or conditions without direct professional supervision. OTC access enables self-medication for symptoms people can reasonably assess themselves.
Behind-the-counter drug : A medicine available without a prescription but dispensed under additional pharmacy controls. Some jurisdictions use this intermediate category between open-shelf OTC and prescription-only supply.
Medication adherence : The extent to which a person takes medicines as agreed with a health professional or as directed. Accessible treatment can support timely symptom relief, but correct use still depends on following directions.
Federal Food, Drug, and Cosmetic Act : A 1938 United States law establishing federal controls over the safety, labeling, and marketing of drugs and other products. It created a central legal framework for drug regulation in the United States.
Drug labeling : The information accompanying a medicine that states its uses, directions, warnings, and other required details. OTC approval depends on consumers being able to use the medicine according to its labeling.
Analgesic : A medicine that relieves pain without necessarily causing loss of consciousness. Many common OTC products, including acetaminophen and ibuprofen, are analgesics.
Prescription-only medicine : A medicine legally available only when authorized by an eligible prescriber. Its access rules contrast with OTC medicines, which can be purchased without a prescription.
Drug interaction : A change in a drug’s effect caused by another drug, food, or substance. OTC products can interact with prescriptions and supplements, often without obvious warning signs.
Durham–Humphrey Amendment : A 1951 United States law formally distinguishing prescription drugs from drugs that could be sold without prescriptions. It established the modern statutory division underlying the prescription and OTC categories.
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