Drug interactions
Atomoxetine + Ponesimod
Severity: Moderate
Atomoxetine 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 slows heart rate and may affect conduction, while atomoxetine has some QT-prolonging potential and also affects heart rate and blood pressure. The combined effect on cardiac rhythm is uncertain but may be clinically relevant in susceptible patients.
What this interaction means in plain words
Atomoxetine 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.
Atomoxetine belongs to Central Nervous System; Ponesimod belongs to Central Nervous System.
Why it happens
Possible additive effects on cardiac conduction and repolarization; the mechanism is not firmly established.
What to do
Obtain a baseline ECG before starting ponesimod and monitor heart rate and rhythm. Use extra care in patients with bradycardia, a prolonged QTc or other QT-prolonging drugs.
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 Atomoxetine
- Atomoxetine + Isocarboxazid Contraindicated
- Atomoxetine + Linezolid Contraindicated
- Atomoxetine + Phenelzine Contraindicated
- Atomoxetine + Procarbazine Contraindicated
- Atomoxetine + Rasagiline Contraindicated
- Atomoxetine + Selegiline Contraindicated
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 Atomoxetine with Ponesimod?
MediHelp rates the interaction as moderate. Atomoxetine 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 slows heart rate and may affect conduction, while atomoxetine has some QT-prolonging potential and also affects heart rate and blood pressure. The combined effect on cardiac rhythm is uncertain but may be clinically relevant in susceptible patients.
How serious is the interaction between Atomoxetine 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: Obtain a baseline ECG before starting ponesimod and monitor heart rate and rhythm. Use extra care in patients with bradycardia, a prolonged QTc or other QT-prolonging drugs.
What other medicines interact with Atomoxetine?
MediHelp also lists interactions of Atomoxetine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Atomoxetine page.
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