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Drug interactions

Cariprazine + Pheniramine

Severity: Moderate

Cariprazine and Pheniramine: 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

Pheniramine is a first-generation sedating antihistamine, and cariprazine can also cause somnolence. Together they may produce more drowsiness and impaired performance, and anticholinergic effects can add to confusion in older adults.

What this interaction means in plain words

Cariprazine and Pheniramine 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; Pheniramine belongs to Respiratory.

Evidence level: Low

Why it happens

Additive central nervous system depression from H1 antagonism and antipsychotic effects.

What to do

Warn about drowsiness and avoid driving until response is known. Consider a non-sedating antihistamine, especially in older patients.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Cariprazine with Pheniramine?

MediHelp rates the interaction as moderate. Cariprazine and Pheniramine 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. Pheniramine is a first-generation sedating antihistamine, and cariprazine can also cause somnolence. Together they may produce more drowsiness and impaired performance, and anticholinergic effects can add to confusion in older adults.

How serious is the interaction between Cariprazine and Pheniramine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Warn about drowsiness and avoid driving until response is known. Consider a non-sedating antihistamine, especially in older patients.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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