Drug interactions
Aripiprazole + Zotepine
Severity: Moderate
Aripiprazole and Zotepine: 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
Combining two antipsychotics increases total dopamine blockade, raising the risk of extrapyramidal symptoms, sedation and neuroleptic malignant syndrome. Zotepine also lowers the seizure threshold and can prolong the QT interval, adding to the overall burden.
What this interaction means in plain words
Aripiprazole and Zotepine 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.
Why it happens
Additive dopamine D2 receptor antagonism or partial agonism and additive sedative effects from histamine and other receptor blockade.
What to do
Avoid routine antipsychotic polypharmacy and keep to the lowest effective doses. Monitor for movement disorders, sedation, fever and rigidity, and obtain an ECG if risk factors are present.
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 Aripiprazole
- Aripiprazole + Pimozide Contraindicated
- Aripiprazole + Thioridazine Contraindicated
- Amisulpride + Aripiprazole Major
- Aripiprazole + Arsenic trioxide Major
- Aripiprazole + Calcium / magnesium / potassium / sodium oxybates Major
- Aripiprazole + Carbamazepine Major
Frequently asked questions
Can I take Aripiprazole with Zotepine?
MediHelp rates the interaction as moderate. Aripiprazole and Zotepine 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. Combining two antipsychotics increases total dopamine blockade, raising the risk of extrapyramidal symptoms, sedation and neuroleptic malignant syndrome. Zotepine also lowers the seizure threshold and can prolong the QT interval, adding to the overall burden.
How serious is the interaction between Aripiprazole and Zotepine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid routine antipsychotic polypharmacy and keep to the lowest effective doses. Monitor for movement disorders, sedation, fever and rigidity, and obtain an ECG if risk factors are present.
What other medicines interact with Aripiprazole?
MediHelp also lists interactions of Aripiprazole with, for example, Pimozide, Thioridazine, Amisulpride. The full list is on the Aripiprazole page.
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