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Drug interactions

Dexchlorpheniramine + Ketamine

Severity: Moderate

Dexchlorpheniramine and Ketamine: 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

Dexchlorpheniramine is a sedating antihistamine that can add to the drowsiness and psychomotor impairment of ketamine. The combination may modestly increase sedation.

What this interaction means in plain words

Dexchlorpheniramine and Ketamine 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.

Dexchlorpheniramine belongs to Respiratory; Ketamine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive central nervous system depression.

What to do

Monitor sedation and advise against driving or hazardous activities. Use a non-sedating antihistamine where possible.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Dexchlorpheniramine with Ketamine?

MediHelp rates the interaction as moderate. Dexchlorpheniramine and Ketamine 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. Dexchlorpheniramine is a sedating antihistamine that can add to the drowsiness and psychomotor impairment of ketamine. The combination may modestly increase sedation.

How serious is the interaction between Dexchlorpheniramine and Ketamine?

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 and advise against driving or hazardous activities. Use a non-sedating antihistamine where possible.

What other medicines interact with Ketamine?

MediHelp also lists interactions of Ketamine with, for example, Benzhydrocodone / acetaminophen, Brexanolone, Buprenorphine buccal. The full list is on the Ketamine page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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