Drug interactions
Granisetron + Paliperidone
Severity: Moderate
Granisetron and Paliperidone: 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
Paliperidone can prolong the QT interval, and granisetron adds a small additional effect. The combination may increase the risk of ventricular arrhythmia, especially with electrolyte abnormalities or cardiac disease.
What this interaction means in plain words
Granisetron and Paliperidone 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.
Granisetron belongs to Gastrointestinal Tract; Paliperidone belongs to Central Nervous System.
Why it happens
Additive QT interval prolongation.
What to do
Correct electrolytes and obtain an ECG in patients with cardiac risk factors. Consider an alternative antiemetic if the QTc is prolonged.
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 Granisetron
- Apomorphine + Granisetron Contraindicated
- Amiodarone + Granisetron Major
- Amisulpride + Granisetron Major
- Arsenic trioxide + Granisetron Major
- Artemether / lumefantrine + Granisetron Major
- Artemether + Granisetron Major
Other interactions of Paliperidone
- Ibutilide + Paliperidone Contraindicated
- Paliperidone + Pimozide Contraindicated
- Paliperidone + Vandetanib Contraindicated
- Adagrasib + Paliperidone Major
- Amiodarone + Paliperidone Major
- Amisulpride + Paliperidone Major
Frequently asked questions
Can I take Granisetron with Paliperidone?
MediHelp rates the interaction as moderate. Granisetron and Paliperidone 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. Paliperidone can prolong the QT interval, and granisetron adds a small additional effect. The combination may increase the risk of ventricular arrhythmia, especially with electrolyte abnormalities or cardiac disease.
How serious is the interaction between Granisetron and Paliperidone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Correct electrolytes and obtain an ECG in patients with cardiac risk factors. Consider an alternative antiemetic if the QTc is prolonged.
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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