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Alosetron

Serious Gastrointestinal Adverse Reactions

  • Infrequent but serious gastrointestinal adverse reactions have been reported with the use of LOTRONEX. These events, including ischemic colitis and serious complications of constipation, have resulted in hospitalization, and rarely, blood transfusion, surgery, and death.
  • LOTRONEX is indicated only for women with severe diarrhea-predominant irritable bowel syndrome (IBS) who have not responded adequately to conventional therapy [see Indications and Usage (1)].
  • LOTRONEX should be discontinued immediately in patients who develop constipation or symptoms of ischemic colitis. Patients should immediately report constipation or symptoms of ischemic colitis to their prescriber. LOTRONEX should not be resumed in patients who develop ischemic colitis. Patients who have constipation should immediately contact their prescriber if the constipation does not resolve after LOTRONEX is discontinued. Patients with resolved constipation should resume LOTRONEX only on the advice of their treating prescriber [see Dosage and Administration (2.1), Warnings and Precautions (5.1), (5.2)].

FDA and Industry Communications

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Approved Risk Evaluation and Mitigation Strategies (REMS)

Alosetron 

LOTRONEX (Alosetron) Tablets

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Medication Guides

Patient Medication Guide

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Alosetron

Additional Information

PubMed - Serious Gastrointestinal Adverse Reactions

Updated February 2016