Drug interactions
Baclofen + Oxazepam
Severity: Major
Baclofen and Oxazepam: 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
Both drugs depress the CNS, so together they can cause marked sedation, ataxia and reduced alertness. Respiratory depression is possible at higher doses or in vulnerable patients.
What this interaction means in plain words
Baclofen and Oxazepam 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; Oxazepam belongs to Central Nervous System.
Why it happens
Additive CNS depression via GABA-A potentiation and GABA-B agonism.
What to do
Use the lowest effective doses and monitor sedation and respiration. Counsel against alcohol and driving, and take particular care in older or renally impaired patients.
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?
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Other interactions of Baclofen
Other interactions of Oxazepam
- Calcium / magnesium / potassium / sodium oxybates + Oxazepam Contraindicated
- Oxazepam + Sodium oxybate Contraindicated
- Alfentanil + Oxazepam Major
- Amobarbital + Oxazepam Major
- Belladonna and opium + Oxazepam Major
- Benzhydrocodone / acetaminophen + Oxazepam Major
Frequently asked questions
Can I take Baclofen with Oxazepam?
MediHelp rates the interaction as major. Baclofen and Oxazepam 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. Both drugs depress the CNS, so together they can cause marked sedation, ataxia and reduced alertness. Respiratory depression is possible at higher doses or in vulnerable patients.
How serious is the interaction between Baclofen and Oxazepam?
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 sedation and respiration. Counsel against alcohol and driving, and take particular care in older or renally impaired patients.
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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