Drug interactions
Cariprazine + Fluphenazine
Severity: Moderate
Cariprazine and Fluphenazine: 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
Both drugs block dopamine D2 receptors, so combining two antipsychotics adds to sedation, extrapyramidal symptoms and the risk of neuroleptic malignant syndrome. Antipsychotic polypharmacy generally brings more adverse effects without clear added benefit.
What this interaction means in plain words
Cariprazine and Fluphenazine 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.
Cariprazine belongs to Central Nervous System; Fluphenazine belongs to Central Nervous System.
Why it happens
Additive dopamine D2 receptor antagonism or partial agonism together with additive CNS depressant effects.
What to do
Avoid routine antipsychotic combinations unless clearly justified; if used, monitor for sedation, akathisia and parkinsonism and use the lowest effective doses.
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 Fluphenazine
- Arsenic trioxide + Fluphenazine Contraindicated
- Dofetilide + Fluphenazine Contraindicated
- Fluphenazine + Ibutilide Contraindicated
- Fluphenazine + Pimozide Contraindicated
- Adagrasib + Fluphenazine Major
- Alfentanil + Fluphenazine Major
Other interactions of Cariprazine
Frequently asked questions
Can I take Cariprazine with Fluphenazine?
MediHelp rates the interaction as moderate. Cariprazine and Fluphenazine 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. Both drugs block dopamine D2 receptors, so combining two antipsychotics adds to sedation, extrapyramidal symptoms and the risk of neuroleptic malignant syndrome. Antipsychotic polypharmacy generally brings more adverse effects without clear added benefit.
How serious is the interaction between Cariprazine and Fluphenazine?
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 combinations unless clearly justified; if used, monitor for sedation, akathisia and parkinsonism and use the lowest effective doses.
What other medicines interact with Fluphenazine?
MediHelp also lists interactions of Fluphenazine with, for example, Arsenic trioxide, Dofetilide, Ibutilide. The full list is on the Fluphenazine page.
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