Drug interactions
Doxylamine + Estazolam
Severity: Moderate
Doxylamine and Estazolam: 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
Estazolam is a benzodiazepine hypnotic and doxylamine is a sedating antihistamine. Together they can cause heavy sedation, next-day impairment, falls and confusion. Elderly patients are at greatest risk.
What this interaction means in plain words
Doxylamine and Estazolam 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 enhancement and central H1 blockade.
What to do
Avoid using both as sleep aids together. If both are necessary, use the lowest doses and warn about daytime impairment and driving.
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 Estazolam?
MediHelp rates the interaction as moderate. Doxylamine and Estazolam 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. Estazolam is a benzodiazepine hypnotic and doxylamine is a sedating antihistamine. Together they can cause heavy sedation, next-day impairment, falls and confusion. Elderly patients are at greatest risk.
How serious is the interaction between Doxylamine and Estazolam?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid using both as sleep aids together. If both are necessary, use the lowest doses and warn about daytime impairment and driving.
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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