Drug interactions
Cariprazine + Fexinidazole
Severity: Major
Cariprazine and Fexinidazole: 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
Fexinidazole inhibits CYP3A4, which is the principal pathway for cariprazine clearance. Higher cariprazine and active metabolite levels may increase adverse effects such as akathisia, parkinsonism and sedation.
What this interaction means in plain words
Cariprazine and Fexinidazole 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.
Why it happens
Inhibition of CYP3A4-mediated metabolism of cariprazine.
What to do
Avoid if possible; if both are needed, consider reducing the cariprazine dose and monitor for extrapyramidal and sedative effects. Fexinidazole is also QT-prolonging, so consider ECG monitoring.
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 Cariprazine
Frequently asked questions
Can I take Cariprazine with Fexinidazole?
MediHelp rates the interaction as major. Cariprazine and Fexinidazole 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. Fexinidazole inhibits CYP3A4, which is the principal pathway for cariprazine clearance. Higher cariprazine and active metabolite levels may increase adverse effects such as akathisia, parkinsonism and sedation.
How serious is the interaction between Cariprazine and Fexinidazole?
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 if possible; if both are needed, consider reducing the cariprazine dose and monitor for extrapyramidal and sedative effects. Fexinidazole is also QT-prolonging, so consider ECG monitoring.
What other medicines interact with Cariprazine?
MediHelp also lists interactions of Cariprazine with, for example, Alfentanil, Amisulpride, Amobarbital. The full list is on the Cariprazine page.
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