Drug interactions
Fezolinetant + Fluvoxamine
Severity: Contraindicated
Fezolinetant and Fluvoxamine: contraindicated 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
Fezolinetant is metabolised mainly by CYP1A2, and fluvoxamine is a strong CYP1A2 inhibitor that greatly increases its exposure. This raises the risk of adverse effects including hepatotoxicity.
What this interaction means in plain words
Fezolinetant and Fluvoxamine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Fezolinetant belongs to Endocrine; Fluvoxamine belongs to Central Nervous System.
Why it happens
Strong CYP1A2 inhibition by fluvoxamine markedly reduces fezolinetant clearance.
What to do
Do not use together; choose a different antidepressant or vasomotor symptom treatment. If fezolinetant is used, monitor liver tests per labeling.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Fezolinetant and Fluvoxamine, 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 14 days on the web. No card needed.
Other interactions of Fluvoxamine
- Agomelatine + Fluvoxamine Contraindicated
- Alosetron + Fluvoxamine Contraindicated
- Fluvoxamine + Isocarboxazid Contraindicated
- Fluvoxamine + Mavacamten Contraindicated
- Fluvoxamine + Methylene blue Contraindicated
- Fluvoxamine + Phenelzine Contraindicated
Other interactions of Fezolinetant
- Cimetidine + Fezolinetant Contraindicated
- Ciprofloxacin + Fezolinetant Contraindicated
- Desogestrel-ethinyl estradiol + Fezolinetant Contraindicated
- Estradiol + Fezolinetant Contraindicated
- Ethinyl estradiol-drospirenone + Fezolinetant Contraindicated
- Ethinyl estradiol-levonorgestrel + Fezolinetant Contraindicated
Frequently asked questions
Can I take Fezolinetant with Fluvoxamine?
MediHelp rates the interaction as contraindicated. Fezolinetant and Fluvoxamine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Fezolinetant is metabolised mainly by CYP1A2, and fluvoxamine is a strong CYP1A2 inhibitor that greatly increases its exposure. This raises the risk of adverse effects including hepatotoxicity.
How serious is the interaction between Fezolinetant and Fluvoxamine?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use together; choose a different antidepressant or vasomotor symptom treatment. If fezolinetant is used, monitor liver tests per labeling.
What other medicines interact with Fluvoxamine?
MediHelp also lists interactions of Fluvoxamine with, for example, Agomelatine, Alosetron, Isocarboxazid. The full list is on the Fluvoxamine 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.
