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Isoflurane Patent Expiration

Isoflurane was first introduced by Baxter Healthcare Corp in its drug Forane on Approved Prior to Jan 1, 1982. 7 different companies have introduced drugs containing Isoflurane.


About Veterinary Isoflurane

Isoflurane is used in drugs marketed by 4 different companies: Parnell Technologies Pty Ltd, Zoetis Inc, Piramal Pharma Ltd, Dechra Veterinary Products Llc.

Other drugs containing Isoflurane are: Isoflurane, usp , Isospire , Isoflo , Attane .

Isoflurane's Family Patents

Family Patents

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Isoflurane Generic API Manufacturers

Several generic applications have been filed for Isoflurane. The first generic version for Isoflurane was by Hospira Inc and was approved on Jan 25, 1993. And the latest generic version is by Shandong New Time Pharmaceutical Co Ltd and was approved on Nov 4, 2025.

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