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Biocon Secures USFDA Tentative Approval for Rifaximin Tablets in Collaboration with Carnegie Pharmaceuticals

By Amrita Bhatia , 9 October 2025
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Biocon Pharma, a wholly owned subsidiary of Biocon Ltd., has received tentative approval from the U.S. Food and Drug Administration (USFDA) for its Abbreviated New Drug Application (ANDA) for Rifaximin Tablets, 550 mg. Developed in partnership with Carnegie Pharmaceuticals LLC, this generic antibacterial medication is indicated for reducing the risk of overt hepatic encephalopathy (HE) recurrence and treating irritable bowel syndrome with diarrhea (IBS-D) in adults. While the approval signifies compliance with regulatory standards, the product cannot be marketed in the U.S. due to existing patents or exclusivities on the reference listed drug.

Regulatory Approval Details

The USFDA's tentative approval indicates that Biocon Pharma's Rifaximin Tablets meet the necessary statutory and regulatory requirements. However, the product cannot be marketed in the U.S. at this time because of patents or exclusivities related to the reference listed drug. This approval is a significant step for Biocon Pharma in expanding its portfolio of generic products in the United States, particularly within the gastrointestinal therapeutics segment.

Market Implications

Despite the tentative approval, Biocon Pharma's entry into the U.S. market with Rifaximin Tablets positions the company to capitalize on future opportunities once the existing patents or exclusivities expire. The approval underscores Biocon's commitment to providing patients with affordable and high-quality medicines, enhancing its presence in the global generics market.

Conclusion

Biocon Pharma's receipt of tentative approval for Rifaximin Tablets from the USFDA marks a significant milestone in the company's expansion strategy. While the product cannot be marketed immediately due to existing patents, the approval demonstrates Biocon's capability to meet stringent regulatory standards and positions the company for future growth in the U.S. generics market.

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Biocon Ltd

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