Drug interactions
Olanzapine + Sotalol
Severity: Moderate
Olanzapine and Sotalol: 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
Olanzapine has a modest QT effect, but sotalol is a strong torsadogenic drug. The combination may increase the risk of ventricular arrhythmia, particularly with electrolyte disturbances or other risk factors.
What this interaction means in plain words
Olanzapine and Sotalol 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.
Olanzapine belongs to Central Nervous System; Sotalol belongs to Cardiovascular.
Why it happens
Additive QT prolongation.
What to do
Obtain a baseline ECG, correct potassium and magnesium, and repeat the ECG after changes. Choose an antipsychotic with lower QT liability if QTc becomes 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 Sotalol
- Arsenic trioxide + Sotalol Contraindicated
- Artemether / lumefantrine + Sotalol Contraindicated
- Disopyramide + Sotalol Contraindicated
- Dofetilide + Sotalol Contraindicated
- Dronedarone + Sotalol Contraindicated
- Droperidol + Sotalol Contraindicated
Other interactions of Olanzapine
Frequently asked questions
Can I take Olanzapine with Sotalol?
MediHelp rates the interaction as moderate. Olanzapine and Sotalol 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. Olanzapine has a modest QT effect, but sotalol is a strong torsadogenic drug. The combination may increase the risk of ventricular arrhythmia, particularly with electrolyte disturbances or other risk factors.
How serious is the interaction between Olanzapine and Sotalol?
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, correct potassium and magnesium, and repeat the ECG after changes. Choose an antipsychotic with lower QT liability if QTc becomes prolonged.
What other medicines interact with Sotalol?
MediHelp also lists interactions of Sotalol with, for example, Arsenic trioxide, Artemether / lumefantrine, Disopyramide. The full list is on the Sotalol page.
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