Prescription drug

A prescription drug is a licensed medicine that is regulated by legislation to require a prescription before it can be obtained. The term is used to distinguish it from over-the-counter drugs which can be obtained without a prescription. Different jurisdictions have different definitions of what constitutes a prescription drug.
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Prescription drug Prescription medication Pharmacology An FDA-approved drug which must, by federal law or regulation, be dispensed only pursuant to [more]Prescription drug - Community and Resources

Noun
1. a drug that is available only with written instructions from a doctor or dentist to a pharmacist; "he told the doctor that he had been taking his prescription regularly"
(synonym) prescription, prescription medicine, ethical drug
(antonym) over-the-counter drug, over-the-counter medicine
(hypernym) medicine, medication, medicament, medicinal drug
(hyponym) refill