Drug interactions
Brivaracetam + Doxylamine
Severity: Moderate
Brivaracetam 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
Doxylamine is a strongly sedating antihistamine, and brivaracetam also causes somnolence. Together they may markedly impair alertness and psychomotor performance.
What this interaction means in plain words
Brivaracetam 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.
Brivaracetam belongs to Central Nervous System; Doxylamine belongs to Respiratory.
Why it happens
Additive CNS depressant effects of brivaracetam and doxylamine.
What to do
Counsel patients on additive drowsiness and avoid driving or hazardous activities. Limit doxylamine use or choose a non-sedating alternative if sedation is problematic.
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 Brivaracetam
Other interactions of Doxylamine
Frequently asked questions
Can I take Brivaracetam with Doxylamine?
MediHelp rates the interaction as moderate. Brivaracetam 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. Doxylamine is a strongly sedating antihistamine, and brivaracetam also causes somnolence. Together they may markedly impair alertness and psychomotor performance.
How serious is the interaction between Brivaracetam 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 patients on additive drowsiness and avoid driving or hazardous activities. Limit doxylamine use or choose a non-sedating alternative if sedation is problematic.
What other medicines interact with Brivaracetam?
MediHelp also lists interactions of Brivaracetam with, for example, Benzhydrocodone / acetaminophen, Sodium oxybate, Acetaminophen / phenyltoloxamine. The full list is on the Brivaracetam page.
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