over-the-counter

o·ver-the-count·er (vr--kountr)

adj. Abbr. OTC

That can be sold legally without a doctor's prescription.

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over-the-counter (OTC),

adj describes medications that can be legally sold without a doctor's prescription. In the United States, such medications are strictly regulated by the Food and Drug Administration (FDA). These medications include sunscreens, antimicrobials or antifungals, analgesics such as aspirin and ibuprofen, and other miscellaneous topical products that have a therapeutic effect.