Drug interactions
Amoxapine + Doxylamine
Severity: Moderate
Amoxapine 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 agents cause sedation, and each has anticholinergic activity. Combined use may increase drowsiness, confusion and anticholinergic effects such as dry mouth, constipation and urinary retention.
What this interaction means in plain words
Amoxapine 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.
Why it happens
Additive CNS depression and additive antimuscarinic activity.
What to do
Monitor for oversedation and anticholinergic effects, particularly in older adults, and avoid driving until response is known. Consider a non-sedating alternative to doxylamine.
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 Amoxapine with Doxylamine?
MediHelp rates the interaction as moderate. Amoxapine 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 agents cause sedation, and each has anticholinergic activity. Combined use may increase drowsiness, confusion and anticholinergic effects such as dry mouth, constipation and urinary retention.
How serious is the interaction between Amoxapine 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: Monitor for oversedation and anticholinergic effects, particularly in older adults, and avoid driving until response is known. Consider a non-sedating alternative to doxylamine.
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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