Drug interactions
Fingolimod + Selpercatinib
Severity: Moderate
Fingolimod and Selpercatinib: moderate 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
Selpercatinib can prolong the QT interval, and fingolimod adds bradycardia and QT effects. The combination increases the risk of ventricular arrhythmia.
What this interaction means in plain words
Fingolimod and Selpercatinib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Fingolimod belongs to Central Nervous System; Selpercatinib belongs to Oncology.
Why it happens
Additive QTc prolongation with fingolimod-related bradycardia.
What to do
Monitor ECG and electrolytes at baseline and periodically. Dose-reduce or interrupt selpercatinib if QTc becomes significantly prolonged.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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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 Selpercatinib
Frequently asked questions
Can I take Fingolimod with Selpercatinib?
MediHelp rates the interaction as moderate. Fingolimod and Selpercatinib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Selpercatinib can prolong the QT interval, and fingolimod adds bradycardia and QT effects. The combination increases the risk of ventricular arrhythmia.
How serious is the interaction between Fingolimod and Selpercatinib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG and electrolytes at baseline and periodically. Dose-reduce or interrupt selpercatinib if QTc becomes significantly prolonged.
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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