Drug interactions
Isoflurane + Siponimod
Severity: Moderate
Isoflurane and Siponimod: 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
Isoflurane can prolong the QT interval and affect hemodynamics. Siponimod causes bradycardia and AV conduction delay, so perioperative arrhythmia risk may rise.
What this interaction means in plain words
Isoflurane and Siponimod 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.
Isoflurane belongs to Central Nervous System; Siponimod belongs to Central Nervous System.
Why it happens
Additive effects on QT interval and heart rate.
What to do
Inform the anaesthetist of siponimod therapy and review the preoperative ECG. Monitor the ECG and heart rate continuously during anaesthesia.
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 Siponimod
- Cladribine + Siponimod Contraindicated
- Fingolimod + Siponimod Contraindicated
- Fluconazole + Siponimod Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Siponimod Contraindicated
- Ponesimod + Siponimod Contraindicated
- Siponimod + Thioridazine Contraindicated
Other interactions of Isoflurane
Frequently asked questions
Can I take Isoflurane with Siponimod?
MediHelp rates the interaction as moderate. Isoflurane and Siponimod 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. Isoflurane can prolong the QT interval and affect hemodynamics. Siponimod causes bradycardia and AV conduction delay, so perioperative arrhythmia risk may rise.
How serious is the interaction between Isoflurane and Siponimod?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Inform the anaesthetist of siponimod therapy and review the preoperative ECG. Monitor the ECG and heart rate continuously during anaesthesia.
What other medicines interact with Siponimod?
MediHelp also lists interactions of Siponimod with, for example, Cladribine, Fingolimod, Fluconazole. The full list is on the Siponimod page.
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