Drug interactions
Fingolimod + Ranolazine
Severity: Major
Fingolimod and Ranolazine: 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
Fingolimod can slow heart rate and has been linked to QT prolongation, and ranolazine also prolongs QT. Combined use may increase arrhythmia risk, especially around fingolimod initiation when bradycardia is greatest.
What this interaction means in plain words
Fingolimod and Ranolazine 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; Ranolazine belongs to Cardiovascular.
Why it happens
Additive QT prolongation, with fingolimod-induced bradycardia increasing susceptibility to torsades de pointes.
What to do
Obtain an ECG before starting fingolimod and monitor for at least six hours after the first dose, with extended monitoring if abnormalities occur. Consider an alternative antianginal in patients with QT risk factors.
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 Ranolazine
- Adagrasib + Ranolazine Contraindicated
- Amobarbital + Ranolazine Contraindicated
- Apalutamide + Ranolazine Contraindicated
- Butabarbital + Ranolazine Contraindicated
- Carbamazepine + Ranolazine Contraindicated
- Clarithromycin + Ranolazine Contraindicated
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
Frequently asked questions
Can I take Fingolimod with Ranolazine?
MediHelp rates the interaction as major. Fingolimod and Ranolazine 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 can slow heart rate and has been linked to QT prolongation, and ranolazine also prolongs QT. Combined use may increase arrhythmia risk, especially around fingolimod initiation when bradycardia is greatest.
How serious is the interaction between Fingolimod and Ranolazine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain an ECG before starting fingolimod and monitor for at least six hours after the first dose, with extended monitoring if abnormalities occur. Consider an alternative antianginal in patients with QT risk factors.
What other medicines interact with Ranolazine?
MediHelp also lists interactions of Ranolazine with, for example, Adagrasib, Amobarbital, Apalutamide. The full list is on the Ranolazine page.
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