Drug interactions
Dexmedetomidine + Doxylamine
Severity: Moderate
Dexmedetomidine 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 may enhance dexmedetomidine sedation, producing oversedation and impaired psychomotor function.
What this interaction means in plain words
Dexmedetomidine 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.
Dexmedetomidine belongs to Central Nervous System; Doxylamine belongs to Respiratory.
Why it happens
Additive CNS depression through alpha-2 agonism and central H1 antagonism.
What to do
Monitor sedation level and vital signs, and reduce the dexmedetomidine dose if excessive 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 Dexmedetomidine
Other interactions of Doxylamine
Frequently asked questions
Can I take Dexmedetomidine with Doxylamine?
MediHelp rates the interaction as moderate. Dexmedetomidine 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 may enhance dexmedetomidine sedation, producing oversedation and impaired psychomotor function.
How serious is the interaction between Dexmedetomidine 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 sedation level and vital signs, and reduce the dexmedetomidine dose if excessive sedation occurs.
What other medicines interact with Dexmedetomidine?
MediHelp also lists interactions of Dexmedetomidine with, for example, Buprenorphine long-acting, Calcium / magnesium / potassium / sodium oxybates, Dextromoramide. The full list is on the Dexmedetomidine page.
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