Drug interactions
Clemastine + Dexmedetomidine
Severity: Moderate
Clemastine and Dexmedetomidine: 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
Clemastine is a sedating antihistamine and may enhance dexmedetomidine sedation, leading to oversedation and psychomotor impairment. Cardiovascular depression may also be additive.
What this interaction means in plain words
Clemastine and Dexmedetomidine 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.
Clemastine belongs to Respiratory; Dexmedetomidine belongs to Central Nervous System.
Why it happens
Additive CNS depression through alpha-2 agonism and central H1 antagonism.
What to do
Monitor sedation depth and hemodynamics, 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 Clemastine
Frequently asked questions
Can I take Clemastine with Dexmedetomidine?
MediHelp rates the interaction as moderate. Clemastine and Dexmedetomidine 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. Clemastine is a sedating antihistamine and may enhance dexmedetomidine sedation, leading to oversedation and psychomotor impairment. Cardiovascular depression may also be additive.
How serious is the interaction between Clemastine and Dexmedetomidine?
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 depth and hemodynamics, 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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