Drug interactions
Isoflurane + Ponesimod
Severity: Moderate
Isoflurane and Ponesimod: 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
Ponesimod causes heart rate slowing and can have small effects on QT, while isoflurane may prolong the QT interval. Together, bradycardia and delayed repolarization could increase arrhythmia risk during anesthesia.
What this interaction means in plain words
Isoflurane and Ponesimod 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; Ponesimod belongs to Central Nervous System.
Why it happens
Additive QT effects combined with sphingosine-1-phosphate receptor mediated bradycardia.
What to do
Check baseline ECG and heart rate before surgery and monitor continuously during anesthesia. Have atropine or other chronotropic support available and correct electrolytes.
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 Isoflurane
Other interactions of Ponesimod
- Fingolimod + Ponesimod Contraindicated
- Ponesimod + Siponimod Contraindicated
- Amiodarone + Ponesimod Major
- Amisulpride + Ponesimod Major
- Anagrelide + Ponesimod Major
- Anti-thymocyte + Ponesimod Major
Frequently asked questions
Can I take Isoflurane with Ponesimod?
MediHelp rates the interaction as moderate. Isoflurane and Ponesimod 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. Ponesimod causes heart rate slowing and can have small effects on QT, while isoflurane may prolong the QT interval. Together, bradycardia and delayed repolarization could increase arrhythmia risk during anesthesia.
How serious is the interaction between Isoflurane and Ponesimod?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check baseline ECG and heart rate before surgery and monitor continuously during anesthesia. Have atropine or other chronotropic support available and correct electrolytes.
What other medicines interact with Isoflurane?
MediHelp also lists interactions of Isoflurane with, for example, Adrenaline-articaine, Amisulpride, Arsenic trioxide. The full list is on the Isoflurane page.
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