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Meaning of word proprietary drug from English dictionary with examples, synonyms and antonyms.

proprietary drug   noun

Meaning : A drug that has a trade name and is protected by a patent (can be produced and sold only by the company holding the patent).

Synonyms : brand-name drug

When the patent protection for a brand-name drug expires generic versions of the drug can be offered for sale if the FDA agrees.

Generic drugs are usually cheaper than brand-name drugs.
generic drug