Drug interactions
Dolasetron + Fenfluramine
Severity: Minor
Dolasetron and Fenfluramine: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Fenfluramine acts by increasing serotonin release and activating serotonin receptors, and 5-HT3 antagonists like dolasetron might blunt some serotonergic effects. Clinical evidence is limited, and the practical impact on seizure control is unclear.
What this interaction means in plain words
Dolasetron and Fenfluramine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Dolasetron belongs to Gastrointestinal Tract; Fenfluramine belongs to Central Nervous System.
Why it happens
Theoretical pharmacodynamic antagonism at serotonin receptors.
What to do
No routine change is needed. Watch for a change in seizure frequency if dolasetron is used regularly.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dolasetron and Fenfluramine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Dolasetron
- Apomorphine + Dolasetron Contraindicated
- Dofetilide + Dolasetron Contraindicated
- Dolasetron + Ibutilide Contraindicated
- Dolasetron + Pimozide Contraindicated
- Dolasetron + Thioridazine Contraindicated
- Dolasetron + Vandetanib Contraindicated
Other interactions of Fenfluramine
- Fenfluramine + Isocarboxazid Contraindicated
- Fenfluramine + Linezolid Contraindicated
- Fenfluramine + Phenelzine Contraindicated
- Fenfluramine + Selegiline Contraindicated
- Fenfluramine + Tranylcypromine Contraindicated
- Almotriptan + Fenfluramine Major
Frequently asked questions
Can I take Dolasetron with Fenfluramine?
MediHelp rates the interaction as minor. Dolasetron and Fenfluramine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Fenfluramine acts by increasing serotonin release and activating serotonin receptors, and 5-HT3 antagonists like dolasetron might blunt some serotonergic effects. Clinical evidence is limited, and the practical impact on seizure control is unclear.
How serious is the interaction between Dolasetron and Fenfluramine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change is needed. Watch for a change in seizure frequency if dolasetron is used regularly.
What other medicines interact with Dolasetron?
MediHelp also lists interactions of Dolasetron with, for example, Apomorphine, Dofetilide, Ibutilide. The full list is on the Dolasetron page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
