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Short answer Alosetron and dependence: what to know Common questions Related questions SourcesNo, alosetron is not addictive and is not a controlled substance.
It blocks serotonin (5-HT3) receptors in the gut, which slows how fast stool moves and eases pain signals, and it has no meaningful effect on the brain reward pathways that drive addiction. You will not build tolerance in the way people do with opioids or benzodiazepines, and stopping does not cause withdrawal, though your diarrhea and cramping usually come back within about a week. What does need attention is a different risk: alosetron can cause severe constipation and, in rare cases, ischemic colitis, which is why it is approved only for women with severe diarrhea-predominant IBS who have not improved on other treatments and is prescribed under an FDA risk management program. Take the lowest dose that controls your symptoms, and never borrow or share this medicine with someone else. Tell your clinician right away about new constipation, worsening belly pain, or blood in your stool.
Alosetron and dependence: what to know
Common questions
Is Alosetron addictive?
No. Alosetron is not addictive and is not a controlled substance. It works on serotonin (5-HT3) receptors in the gut to slow bowel movement and ease pain, and it does not act on brain reward pathways, so it does not cause cravings, a high, or dose escalation to chase an effect. Stopping does not cause withdrawal, though your diarrhea and cramping usually return within about a week. The real concerns are different: alosetron can cause severe constipation and, rarely, ischemic colitis, so it is used at the lowest effective dose under an FDA safety program. Stop the drug and call your clinician if you develop new or worsening constipation, severe belly pain, or bloody stools.