Drug interactions
Granisetron + Ozanimod
Severity: Minor
Granisetron and Ozanimod: minor 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
Ozanimod can slow heart rate and conduction on initiation but is not a recognized strong QT-prolonging drug at therapeutic doses. Granisetron has only a small QT effect, so the combined risk is mostly theoretical, although bradycardia can predispose to QT-related arrhythmia.
What this interaction means in plain words
Granisetron and Ozanimod have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Granisetron belongs to Gastrointestinal Tract; Ozanimod belongs to Central Nervous System.
Why it happens
Possible additive cardiac effects, with bradycardia from ozanimod increasing susceptibility to QT-related arrhythmia.
What to do
No routine change is needed; monitor heart rate at ozanimod initiation and obtain an ECG if the patient has other QT risk factors.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Granisetron
- Apomorphine + Granisetron Contraindicated
- Amiodarone + Granisetron Major
- Amisulpride + Granisetron Major
- Arsenic trioxide + Granisetron Major
- Artemether / lumefantrine + Granisetron Major
- Artemether + Granisetron Major
Other interactions of Ozanimod
- Isocarboxazid + Ozanimod Contraindicated
- Linezolid + Ozanimod Contraindicated
- Ozanimod + Phenelzine Contraindicated
- Ozanimod + Procarbazine Contraindicated
- Ozanimod + Rasagiline Contraindicated
- Ozanimod + Safinamide Contraindicated
Frequently asked questions
Can I take Granisetron with Ozanimod?
MediHelp rates the interaction as minor. Granisetron and Ozanimod have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ozanimod can slow heart rate and conduction on initiation but is not a recognized strong QT-prolonging drug at therapeutic doses. Granisetron has only a small QT effect, so the combined risk is mostly theoretical, although bradycardia can predispose to QT-related arrhythmia.
How serious is the interaction between Granisetron and Ozanimod?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change is needed; monitor heart rate at ozanimod initiation and obtain an ECG if the patient has other QT risk factors.
What other medicines interact with Granisetron?
MediHelp also lists interactions of Granisetron with, for example, Apomorphine, Amiodarone, Amisulpride. The full list is on the Granisetron page.
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