Drug interactions
Doxylamine + Kava
Severity: Moderate
Doxylamine and Kava: 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
Kava has anxiolytic and sedative effects, and with doxylamine it may cause additive drowsiness and impaired coordination. Kava also carries a risk of liver toxicity, which is a separate concern.
What this interaction means in plain words
Doxylamine and Kava 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; kavalactones modulate GABA-A receptors alongside H1 antihistamine sedation.
What to do
Advise against using the two together and warn about driving. Avoid kava in patients with liver disease or those taking other hepatotoxic drugs.
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 Kava?
MediHelp rates the interaction as moderate. Doxylamine and Kava 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. Kava has anxiolytic and sedative effects, and with doxylamine it may cause additive drowsiness and impaired coordination. Kava also carries a risk of liver toxicity, which is a separate concern.
How serious is the interaction between Doxylamine and Kava?
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 against using the two together and warn about driving. Avoid kava in patients with liver disease or those taking other hepatotoxic drugs.
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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