Proprietary drug are chemicals used for medicinal purposes which are formulated or manufactured under a name protected from competition through trademark or patent. The invented drug is usually still considered proprietary even if the patent expired.
Proprietary drug are chemicals used for medicinal purposes which are formulated or manufactured under a name protected from competition through trademark or patent. The invented drug is usually still considered proprietary even if the patent expired.
Source: Wikipedia "Proprietary drug" · CC BY-SA 4.0
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