Drug interactions
Baclofen + Dimenhydrinate
Severity: Moderate
Baclofen and Dimenhydrinate: 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
Dimenhydrinate contains diphenhydramine and is markedly sedating. With baclofen, drowsiness and impaired coordination can be additive.
What this interaction means in plain words
Baclofen and Dimenhydrinate 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; Dimenhydrinate belongs to Respiratory.
Why it happens
Additive CNS depression from H1 antagonism and GABA-B agonism.
What to do
Advise avoiding driving and hazardous tasks, and use the lowest dimenhydrinate dose needed. Monitor older patients for confusion and falls.
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
Other interactions of Dimenhydrinate
Frequently asked questions
Can I take Baclofen with Dimenhydrinate?
MediHelp rates the interaction as moderate. Baclofen and Dimenhydrinate 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. Dimenhydrinate contains diphenhydramine and is markedly sedating. With baclofen, drowsiness and impaired coordination can be additive.
How serious is the interaction between Baclofen and Dimenhydrinate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise avoiding driving and hazardous tasks, and use the lowest dimenhydrinate dose needed. Monitor older patients for confusion and falls.
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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