Allopurinol was first introduced by Abbott Laboratories Pharmaceutical Products Div in its drug Lopurin on Approved Prior to Jan 1, 1982. Other drugs containing Allopurinol are Zyloprim, Allopurinol. 25 different companies have introduced drugs containing Allopurinol.

Allopurinol Generic API Manufacturers

Several generic applications have been filed for Allopurinol. The first generic version for Allopurinol was by Puracap Pharmaceutical Llc and was approved on Dec 10, 1985. And the latest generic version is by Zydus Pharmaceuticals Usa Inc and was approved on Jun 13, 2025.

Given below is the list of companies who have filed for Allopurinol generic, along with the locations of their manufacturing plants worldwide.