Drug interactions
Baclofen + Doxylamine
Severity: Moderate
Baclofen and Doxylamine: 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 drugs depress the central nervous system, so taking them together can cause more drowsiness, dizziness and impaired psychomotor performance than either alone. Falls and impaired driving are the main concerns, especially in older adults.
What this interaction means in plain words
Baclofen and Doxylamine 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; Doxylamine belongs to Respiratory.
Why it happens
Additive CNS depression from GABA-B agonism (baclofen) and sedating H1-antihistamine activity (doxylamine).
What to do
Counsel the patient about sedation and avoiding driving or hazardous tasks. Use the lowest effective doses and avoid sedating antihistamines in older 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?
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Other interactions of Baclofen
Other interactions of Doxylamine
Frequently asked questions
Can I take Baclofen with Doxylamine?
MediHelp rates the interaction as moderate. Baclofen and Doxylamine 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 drugs depress the central nervous system, so taking them together can cause more drowsiness, dizziness and impaired psychomotor performance than either alone. Falls and impaired driving are the main concerns, especially in older adults.
How serious is the interaction between Baclofen and Doxylamine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel the patient about sedation and avoiding driving or hazardous tasks. Use the lowest effective doses and avoid sedating antihistamines in older 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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