Drug interactions
Chlorpheniramine + Dexmedetomidine
Severity: Moderate
Chlorpheniramine 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
Both drugs cause sedation, so together they can produce excessive drowsiness and impaired psychomotor function. Hypotension or bradycardia may also be more pronounced in vulnerable patients.
What this interaction means in plain words
Chlorpheniramine 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.
Chlorpheniramine 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 level and vital signs, and lower the dexmedetomidine dose if oversedation develops.
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 Chlorpheniramine
Frequently asked questions
Can I take Chlorpheniramine with Dexmedetomidine?
MediHelp rates the interaction as moderate. Chlorpheniramine 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. Both drugs cause sedation, so together they can produce excessive drowsiness and impaired psychomotor function. Hypotension or bradycardia may also be more pronounced in vulnerable patients.
How serious is the interaction between Chlorpheniramine 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 level and vital signs, and lower the dexmedetomidine dose if oversedation develops.
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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