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Rifaximin, sold under the brand name Xifaxan among others, is a non-absorbable, broad-spectrum antibiotic mainly used to treat travelers' diarrhea. It is based on the rifamycin antibiotics family. Since its approval in Italy in 1987, it has been licensed in more than 30 countries for the treatment of a variety of gastrointestinal diseases like ...
XIFAXAN (rifaximin) 550 mg tablets are contraindicated in patients with a hypersensitivity to rifaximin, any of the rifamycin antimicrobial agents, or any of the components in XIFAXAN.
Medicare Part D prescription drug coverage helps cover the cost of Xifaxan (rifaximin). Doctors may recommend Xifaxan to treat irritable bowel syndrome with diarrhea (IBS-D) or to help prevent ...
Medicare prescription drug plans usually cover Xifaxan. Learn about coverage options, cost, and cost-savings programs.
Lepetit filed for patent protection of Rifamycin B in the UK in August 1958, and in the US in March 1959. The British patent GB921045 was granted in March 1963, and U.S. Patent 3,150,046 was granted in September 1964. The drug is widely regarded as having helped conquer the issue of drug-resistant tuberculosis in the 1960s.
In May 2023, Judge Richard G. Andrews upheld the court's original ruling, which blocks the FDA from approving Norwich Pharmaceuticals' 550 mg rifaximin generic until October 2029. Judge Andrews' decision bolsters his previous ruling that Norwich's abbreviated new drug application for rifaximin infringed on Bausch Health's Xifaxan patents for ...
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