Data On Length Of Symptom Relief Could Improve Xifaxan Trial, Panel Members Suggest

Some members of FDA’s Gastrointestinal Drugs Advisory Committee urged Salix Pharmaceuticals Ltd. To use its study of repeat use of Xifaxan (rifaximin) in treating irritable bowel syndrome with diarrhea in order to gather information on the drug’s long-term impact on symptoms.

Collecting data about how long patients can go before symptoms recur would be valuable in setting parameters for the drug’s...

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