Does Selective Serotonin Reuptake Inhibitors Ssri Interact with Ondansetron?
CDI records a major classification for Selective Serotonin Reuptake Inhibitors Ssri and Ondansetron. The stored summary is: Concomitant use may cause serotonin syndrome including altered mental status, autonomic instability, and neuromuscular symptoms. Monitor for emergence of serotonin syndrome. The mechanism involves additive serotonergic effects via 5-ht3 receptor antagonism. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This record was extracted from drug labeling through openFDA. NIH/NLM RxNorm is used for drug identities. The summary and severity classification are CDI's processed information, not a verbatim source quotation. Product, route, and patient circumstances matter.
- Severity
- Major
- Ondansetron Class
- Serotonin-3 Receptor Antagonist
- Management
- Close medical supervision required
- Data Source
- U.S. FDA via OpenFDA
Recorded Mechanism
Additive serotonergic effects via 5-HT3 receptor antagonism
What To Tell Your Doctor or Pharmacist
If you are taking Selective Serotonin Reuptake Inhibitors Ssri and your doctor is considering prescribing Ondansetron (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask how frequently you should be monitored while these are co-prescribed
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider