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Drug interactions

Loxapine + Pholcodine

Severity: Moderate

Loxapine and Pholcodine: 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

Pholcodine is an opioid cough suppressant with sedative properties, and combined with loxapine it may increase drowsiness and, at higher doses, respiratory depression. The effect is usually modest at antitussive doses.

What this interaction means in plain words

Loxapine and Pholcodine 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.

Evidence level: Low

Why it happens

Additive CNS depression from opioid activity and antipsychotic sedation.

What to do

Monitor for excess sedation and advise against driving if drowsy. Keep pholcodine at the lowest dose and for the shortest time.

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 Loxapine with Pholcodine?

MediHelp rates the interaction as moderate. Loxapine and Pholcodine 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. Pholcodine is an opioid cough suppressant with sedative properties, and combined with loxapine it may increase drowsiness and, at higher doses, respiratory depression. The effect is usually modest at antitussive doses.

How serious is the interaction between Loxapine and Pholcodine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for excess sedation and advise against driving if drowsy. Keep pholcodine at the lowest dose and for the shortest time.

What other medicines interact with Loxapine?

MediHelp also lists interactions of Loxapine with, for example, Alfentanil, Alprazolam, Amisulpride. The full list is on the Loxapine page.

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

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