1. 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); [syn: brand-name drug, proprietary drug]
WordNet (r) 3.0 (2006):
proprietary drug
n 1: 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) [syn: brand-name drug, proprietary drug] [ant:
generic drug]