Allopurinol; Lesinurad Patent Expiration

Allopurinol; Lesinurad is Used for treating hyperuricemia associated with gout in patients who have not responded to a sufficient dose of allopurinol alone. It was first introduced by Ironwood Pharmaceuticals Inc in its drug Duzallo on Aug 18, 2017.


Allopurinol; Lesinurad Patents

Given below is the list of patents protecting Allopurinol; Lesinurad, along with the drug name that holds that patent and the company name owning that drug.

Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Duzallo US8546436 Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)acetic acid and uses thereof Feb 29, 2032 Ironwood Pharms Inc
Duzallo US9956205 Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)acetic acid and uses thereof Dec 28, 2031 Ironwood Pharms Inc
Duzallo US9216179 Treatment of gout and hyperuricemia Aug 01, 2031 Ironwood Pharms Inc
Duzallo US8357713 Compounds and compositions and methods of use Dec 22, 2029 Ironwood Pharms Inc
Duzallo US8084483 Compounds and compositions and methods of use Aug 17, 2029 Ironwood Pharms Inc
Duzallo US8546437 Compounds and compositions and methods of use Apr 29, 2029 Ironwood Pharms Inc
Duzallo US10183012 Compounds and compositions and methods of use Nov 26, 2028 Ironwood Pharms Inc
Duzallo US8283369 Compounds and compositions and methods of use Nov 26, 2028 Ironwood Pharms Inc
Duzallo US8003681 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)acetic acid and methyl ester Aug 25, 2025 Ironwood Pharms Inc



Allopurinol; Lesinurad's Family Patents

Family Patents

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