Liothyronine Sodium Patent Expiration

Liothyronine Sodium was first introduced by King Pharmaceuticals Research And Development Llc in its drug Cytomel on Approved Prior to Jan 1, 1982. Another drug containing Liothyronine Sodium is Triostat. 11 different companies have introduced drugs containing Liothyronine Sodium.


About Veterinary Liothyronine Sodium

Liothyronine Sodium is used in a drug marketed by 1 company: Zoetis Inc.

Other drugs containing Liothyronine Sodium are: Cytobin tablets .

Liothyronine Sodium's Family Patents

Family Patents

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Clinical Trials

Recent Clinical Trials on Liothyronine Sodium:

Sometimes companies keep conducting clinical trials even after the drug's approval to discover new formulations, methods of use, or new treatment indications, so they could file for additional patents or receive regulatory exclusivity extensions, such as pediatric exclusivity, potentially delaying generic competition. Based on these recent clinical trials, generic companies need to consider the potential for new intellectual property or regulatory hurdles. These strategic moves by the drug owner might delay generic substitution or lead to additional sales of the brand drug, even after patent expiry.

Title Lead Sponsor Collaborators Status Phases
Clinical Trials
Gene Therapy and Radioactive Iodine in Treating Patients With Locally Recurrent Prostate Cancer That Did Not Respond to Radiation Therapy Mayo Clinic NA TERMINATED
(Jul 1, 2026)
PHASE1
Treatment of ARDS With Instilled T3 University of Minnesota NA ACTIVE NOT RECRUITING
(Apr 1, 2026)
PHASE2


Liothyronine Sodium Generic API Manufacturers

Several generic applications have been filed for Liothyronine Sodium. The first generic version for Liothyronine Sodium was by Watson Laboratories Inc and was approved on Jan 25, 1982. And the latest generic version is by Biocon Pharma Inc and was approved on Feb 6, 2024.

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