Drug interactions
Aripiprazole + Trifluoperazine
Severity: Moderate
Aripiprazole and Trifluoperazine: 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
Using two antipsychotics increases the cumulative dopamine blockade, raising the risk of extrapyramidal symptoms, sedation, QT effects and neuroleptic malignant syndrome. Aripiprazole's partial agonism does not remove this risk when combined with a potent D2 antagonist.
What this interaction means in plain words
Aripiprazole and Trifluoperazine 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 D2 receptor antagonism and sedative effects.
What to do
Avoid antipsychotic polypharmacy where possible and monitor for extrapyramidal symptoms, akathisia and hyperthermia or rigidity. Keep both doses as low as effective.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Aripiprazole and Trifluoperazine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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 Trifluoperazine?
MediHelp rates the interaction as moderate. Aripiprazole and Trifluoperazine 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. Using two antipsychotics increases the cumulative dopamine blockade, raising the risk of extrapyramidal symptoms, sedation, QT effects and neuroleptic malignant syndrome. Aripiprazole's partial agonism does not remove this risk when combined with a potent D2 antagonist.
How serious is the interaction between Aripiprazole and Trifluoperazine?
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 antipsychotic polypharmacy where possible and monitor for extrapyramidal symptoms, akathisia and hyperthermia or rigidity. Keep both doses as low as effective.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
