Drug interactions
Aripiprazole + Arsenic trioxide
Severity: Major
Aripiprazole and Arsenic trioxide: major 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
Arsenic trioxide causes marked QT prolongation and torsades de pointes. Aripiprazole has a small QT liability, so the effects may be additive, although aripiprazole is among the lower-risk antipsychotics.
What this interaction means in plain words
Aripiprazole and Arsenic trioxide can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Aripiprazole belongs to Central Nervous System; Arsenic trioxide belongs to Oncology.
Why it happens
Additive prolongation of cardiac repolarization.
What to do
Avoid other QT-prolonging drugs during arsenic trioxide therapy where alternatives exist. If aripiprazole must continue, monitor ECG and keep potassium and magnesium within normal range.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Aripiprazole
- Aripiprazole + Pimozide Contraindicated
- Aripiprazole + Thioridazine Contraindicated
- Amisulpride + Aripiprazole Major
- Aripiprazole + Calcium / magnesium / potassium / sodium oxybates Major
- Aripiprazole + Carbamazepine Major
- Aripiprazole + Cisapride Major
Other interactions of Arsenic trioxide
- Amiodarone + Arsenic trioxide Contraindicated
- Amisulpride + Arsenic trioxide Contraindicated
- Arsenic trioxide + Clomipramine Contraindicated
- Arsenic trioxide + Dronedarone Contraindicated
- Arsenic trioxide + Fluphenazine Contraindicated
- Arsenic trioxide + Gemifloxacin Contraindicated
Frequently asked questions
Can I take Aripiprazole with Arsenic trioxide?
MediHelp rates the interaction as major. Aripiprazole and Arsenic trioxide can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Arsenic trioxide causes marked QT prolongation and torsades de pointes. Aripiprazole has a small QT liability, so the effects may be additive, although aripiprazole is among the lower-risk antipsychotics.
How serious is the interaction between Aripiprazole and Arsenic trioxide?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid other QT-prolonging drugs during arsenic trioxide therapy where alternatives exist. If aripiprazole must continue, monitor ECG and keep potassium and magnesium within normal range.
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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