small molecule

DUZALLO

ALLOPURINOL; LESINURAD

Loss of exclusivityFebruary 2032latest FDA-listed patent expiry
CompanyIronwood PharmaceuticalsView the full company profile on CliffBio

Drug detail

Brand nameDUZALLO
Active ingredientALLOPURINOL; LESINURAD
Strength300MG;200MG
Dosage formTABLET
RouteORAL
ModalitySmall molecule
FDA approvalAugust 2017
Marketing statusDISCN

Listed patents

PatentExpiresType
8546436February 2032substance
9956205December 2031use U-2104
9216179August 2031use U-2104
8357713December 2029product
8084483August 2029use U-2104
8546437April 2029use U-2104
8283369November 2028use U-2104
10183012November 2028use U-2104

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.

DUZALLO patent cliff — loss of exclusivity February 2032 | CliffBio