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Drug interactions

Baclofen + Pholcodine

Severity: Moderate

Baclofen 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 antitussive with mild sedative activity, and baclofen may add to drowsiness and dizziness. Clinically significant respiratory depression is unlikely at usual antitussive doses but possible with higher doses.

What this interaction means in plain words

Baclofen 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 receptor agonism and GABA-B agonism.

What to do

Use the lowest effective pholcodine dose and monitor for excessive drowsiness. Advise patients to avoid alcohol and driving if sedated.

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 Baclofen with Pholcodine?

MediHelp rates the interaction as moderate. Baclofen 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 antitussive with mild sedative activity, and baclofen may add to drowsiness and dizziness. Clinically significant respiratory depression is unlikely at usual antitussive doses but possible with higher doses.

How serious is the interaction between Baclofen 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: Use the lowest effective pholcodine dose and monitor for excessive drowsiness. Advise patients to avoid alcohol and driving if sedated.

What other medicines interact with Baclofen?

MediHelp also lists interactions of Baclofen with, for example, Alfentanil, Amobarbital, Belladonna and opium. The full list is on the Baclofen page.

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