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Drug interactions

Baclofen + Orphenadrin

Severity: Moderate

Baclofen and Orphenadrin: 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 are muscle relaxants with sedative effects, so combined use may cause marked drowsiness, dizziness, weakness and confusion. Falls risk is increased, especially in older adults.

What this interaction means in plain words

Baclofen and Orphenadrin 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.

Baclofen belongs to Musculoskeletal; Orphenadrin belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive CNS depression and muscle relaxant effects.

What to do

Start with low doses and titrate slowly while monitoring sedation, weakness and cognition. Avoid alcohol and use extra caution in elderly 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 Baclofen with Orphenadrin?

MediHelp rates the interaction as moderate. Baclofen and Orphenadrin 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 are muscle relaxants with sedative effects, so combined use may cause marked drowsiness, dizziness, weakness and confusion. Falls risk is increased, especially in older adults.

How serious is the interaction between Baclofen and Orphenadrin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start with low doses and titrate slowly while monitoring sedation, weakness and cognition. Avoid alcohol and use extra caution in elderly patients.

What other medicines interact with Orphenadrin?

MediHelp also lists interactions of Orphenadrin with, for example, Alfentanil, Amobarbital, Benzhydrocodone / acetaminophen. The full list is on the Orphenadrin page.

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

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