AMITIZA® is a prescription medicine approved by the FDA to treat adults with IBS-C and Chronic Idiopathic Constipation in women 18 years of age and older. ZELNORM® (tegaserod) is a prokinetic agent that works by targeting the serotonin 5-HT4 receptors in the intestines. it has been approved by the FDA to treat IBS-C .

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