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Drug interactions

Baclofen + Hydrocodone

Severity: Major

Baclofen and Hydrocodone: 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

Baclofen is a centrally acting muscle relaxant that can add to opioid sedation and respiratory depression. Combined use increases the risk of dizziness, falls, and overdose.

What this interaction means in plain words

Baclofen and Hydrocodone 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.

Baclofen belongs to Musculoskeletal; Hydrocodone belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive CNS and respiratory depression through GABA-B agonism and opioid receptor agonism.

What to do

Use the lowest effective doses and monitor for sedation and respiratory depression. Counsel patients to avoid driving and alcohol.

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?

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 Hydrocodone?

MediHelp rates the interaction as major. Baclofen and Hydrocodone 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. Baclofen is a centrally acting muscle relaxant that can add to opioid sedation and respiratory depression. Combined use increases the risk of dizziness, falls, and overdose.

How serious is the interaction between Baclofen and Hydrocodone?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor for sedation and respiratory depression. Counsel patients to avoid driving and alcohol.

What other medicines interact with Hydrocodone?

MediHelp also lists interactions of Hydrocodone with, for example, Alvimopan, Bupropion-naltrexone, Isocarboxazid. The full list is on the Hydrocodone page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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