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Chlorthalidone Patent Expiration

Chlorthalidone was first introduced by Sanofi Aventis Us Llc in its drug Hygroton on Approved Prior to Jan 1, 1982. Other drugs containing Chlorthalidone are Hemiclor, Thalitone. 40 different companies have introduced drugs containing Chlorthalidone.


Chlorthalidone Patents

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

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Country : United States (US)
Patent Category : All
Dosage Form Category : Others
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Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Hemiclor US12667554 Sep 04, 2045 Prm Pharma



Chlorthalidone's Family Patents

Family Patents

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Chlorthalidone Generic API Manufacturers

Several generic applications have been filed for Chlorthalidone. The first generic version for Chlorthalidone was by Watson Laboratories Inc and was approved on Approved Prior to Jan 1, 1982. And the latest generic version is by Macleods Pharmaceuticals Ltd and was approved on Jul 1, 2026.

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