Chlorpheniramine Maleate Patent Expiration

Chlorpheniramine Maleate was first introduced by Schering Corp Sub Schering Plough Corp in its drug Chlor-Trimeton on Approved Prior to Jan 1, 1982. Other drugs containing Chlorpheniramine Maleate are Efidac 24 Chlorpheniramine Maleate, Teldrin. 31 different companies have introduced drugs containing Chlorpheniramine Maleate.


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Clinical Trials

Recent Clinical Trials on Chlorpheniramine Maleate:

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
Study to Evaluate the Efficacy and Safety of Plitidepsin in Adults With Post-COVID-19 Condition (PCC) Fundación FLS de Lucha Contra el Sida, las Enfermedades Infecciosas y la Promoción de la Salud y la Ciencia NA ACTIVE NOT RECRUITING
(Jul 1, 2026)
PHASE2
Fixed-dose Combination of 1000 mg Dipyrone Monohydrate + 60 mg Caffeine + 4 mg Chlorpheniramine Maleate in Improving Symptoms of the Common Cold and Flu in Adults Brainfarma Industria Química e Farmacêutica S/A NA RECRUITING
(Jun 1, 2026)
PHASE3


Chlorpheniramine Maleate Generic API Manufacturers

Several generic applications have been filed for Chlorpheniramine Maleate. The first generic version for Chlorpheniramine Maleate was by Pharmavite Pharmaceuticals and was approved on Approved Prior to Jan 1, 1982. And the latest generic version is by Avanthi Inc and was approved on May 13, 2009.

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