Drug interactions
Fingolimod + Toremifene
Severity: Major
Fingolimod and Toremifene: major 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
Toremifene carries a labeled QT prolongation warning, and fingolimod adds bradycardia and QT effects. Together they increase the risk of torsades de pointes.
What this interaction means in plain words
Fingolimod and Toremifene can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Fingolimod belongs to Central Nervous System; Toremifene belongs to Endocrine.
Why it happens
Additive QTc prolongation with fingolimod-related bradycardia.
What to do
Avoid the combination; use an alternative endocrine agent if possible. If unavoidable, monitor ECG and electrolytes and correct hypokalemia and hypomagnesemia.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Fingolimod
- Adenovirus types 4 and 7 live + Fingolimod Contraindicated
- Bcg vaccine live + Fingolimod Contraindicated
- Fingolimod + Pimozide Contraindicated
- Fingolimod + Ponesimod Contraindicated
- Fingolimod + Quinidine Contraindicated
- Fingolimod + Siponimod Contraindicated
Other interactions of Toremifene
- Amiodarone + Toremifene Contraindicated
- Dronedarone + Toremifene Contraindicated
- Nilotinib + Toremifene Contraindicated
- Pimozide + Toremifene Contraindicated
- Quinidine + Toremifene Contraindicated
- Ribociclib + Toremifene Contraindicated
Frequently asked questions
Can I take Fingolimod with Toremifene?
MediHelp rates the interaction as major. Fingolimod and Toremifene can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Toremifene carries a labeled QT prolongation warning, and fingolimod adds bradycardia and QT effects. Together they increase the risk of torsades de pointes.
How serious is the interaction between Fingolimod and Toremifene?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination; use an alternative endocrine agent if possible. If unavoidable, monitor ECG and electrolytes and correct hypokalemia and hypomagnesemia.
What other medicines interact with Fingolimod?
MediHelp also lists interactions of Fingolimod with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Pimozide. The full list is on the Fingolimod page.
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