Chloramphenicol Patent Expiration

Chloramphenicol was first introduced by Allergan Pharmaceutical in its drug Chloroptic on Approved Prior to Jan 1, 1982. Another drug containing Chloramphenicol is Chloromycetin. 9 different companies have introduced drugs containing Chloramphenicol.


About Veterinary Chloramphenicol

Chloramphenicol is used in drugs marketed by 5 different companies: Bimeda Animal Health Ltd, Dechra Veterinary Products Llc, Cronus Pharma Specialities India Private Ltd, Pharmaceutical Ventures Ltd, Zoetis Inc.

Other drugs containing Chloramphenicol are: Chloramphenicol capsules , Chloromycetin ophthalmic ointment , Anacetin tablets , Mychel vet capsules (50 mg)

Chloramphenicol's Family Patents

Family Patents

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Clinical Trials

Recent Clinical Trials on Chloramphenicol:

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
A Clinical Trial to Evaluate the Safety and Efficacy of Ciprofloxacin in the Treatment of Plague in Humans Centers for Disease Control and Prevention NA COMPLETED
(Jun 1, 2026)
PHASE2
Lesion Sterilization and Tissue Repair Antibiotic Paste Versus Zinc Oxide and Eugenol Pulpectomy for Treatment of Primary Molars With Pulp Necrosis University of Faisalabad NA NOT YET RECRUITING
(Mar 1, 2026)
PHASE1, PHASE2


Chloramphenicol Generic API Manufacturers

Several generic applications have been filed for Chloramphenicol. The first generic version for Chloramphenicol was by John J Ferrante and was approved on Jan 1, 1982. And the latest generic version is by Alcon Laboratories Inc and was approved on Sep 25, 1985.

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