CliffBio
small molecule

ARICEPT

DONEPEZIL HYDROCHLORIDE

Loss of exclusivityOctober 2026latest FDA-listed patent expiry
CompanyEisai →See this company's full patent-cliff portfolio

Drug detail

Brand nameARICEPT
Active ingredientDONEPEZIL HYDROCHLORIDE
Strength23MG
Dosage formTABLET
RouteORAL
ModalitySmall molecule
FDA approvalJuly 2010
Marketing statusRX

Listed patents

PatentExpiresType
8481565October 2026product

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Source: FDA Orange Book, layered on the CliffBio company graph. Cliff dates are the latest FDA-listed patent expiry; estimates are projections, not legal advice.