Drug interactions
Doxylamine + Ethanol
Severity: Moderate
Doxylamine and Ethanol: 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
Alcohol and doxylamine both depress the central nervous system. Drinking while taking doxylamine increases drowsiness, slows reaction time and impairs coordination and judgment. Doxylamine's labeling advises against alcohol.
What this interaction means in plain words
Doxylamine and Ethanol 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 from H1 antihistamine sedation and alcohol's GABAergic effects.
What to do
Advise patients to avoid alcohol while taking doxylamine and not to drive or operate machinery. Reduce or stop doxylamine if marked sedation occurs.
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 Doxylamine
Frequently asked questions
Can I take Doxylamine with Ethanol?
MediHelp rates the interaction as moderate. Doxylamine and Ethanol 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. Alcohol and doxylamine both depress the central nervous system. Drinking while taking doxylamine increases drowsiness, slows reaction time and impairs coordination and judgment. Doxylamine's labeling advises against alcohol.
How serious is the interaction between Doxylamine and Ethanol?
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 patients to avoid alcohol while taking doxylamine and not to drive or operate machinery. Reduce or stop doxylamine if marked sedation occurs.
What other medicines interact with Doxylamine?
MediHelp also lists interactions of Doxylamine with, for example, Belladonna and opium, Benzhydrocodone / acetaminophen, Brexanolone. The full list is on the Doxylamine page.
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