Drug interactions
Baclofen + Diazepam intranasal
Severity: Moderate
Baclofen and Diazepam intranasal: 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
Intranasal diazepam combined with baclofen can intensify sedation, muscle weakness and ataxia, and may impair breathing. This is of particular concern for patients with compromised respiratory function.
What this interaction means in plain words
Baclofen and Diazepam intranasal 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.
Why it happens
Additive CNS depression via GABA-A potentiation by diazepam and GABA-B agonism by baclofen.
What to do
Monitor sedation and respiratory status after administration, particularly after a seizure rescue dose. Reduce doses where possible and counsel on avoiding alcohol.
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?
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Other interactions of Baclofen
Frequently asked questions
Can I take Baclofen with Diazepam intranasal?
MediHelp rates the interaction as moderate. Baclofen and Diazepam intranasal 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. Intranasal diazepam combined with baclofen can intensify sedation, muscle weakness and ataxia, and may impair breathing. This is of particular concern for patients with compromised respiratory function.
How serious is the interaction between Baclofen and Diazepam intranasal?
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 sedation and respiratory status after administration, particularly after a seizure rescue dose. Reduce doses where possible and counsel on avoiding alcohol.
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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