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Drug interactions

Dexchlorpheniramine + Oxymorphone

Severity: Moderate

Dexchlorpheniramine and Oxymorphone: 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 oxymorphone-induced drowsiness and respiratory depression. Impaired coordination and alertness are more likely.

What this interaction means in plain words

Dexchlorpheniramine and Oxymorphone 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; Oxymorphone belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive CNS depression from H1 antagonism and opioid agonism.

What to do

Use the lowest effective doses and advise avoiding driving and alcohol. Consider a non-sedating antihistamine.

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 Oxymorphone?

MediHelp rates the interaction as moderate. Dexchlorpheniramine and Oxymorphone 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 oxymorphone-induced drowsiness and respiratory depression. Impaired coordination and alertness are more likely.

How serious is the interaction between Dexchlorpheniramine and Oxymorphone?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and advise avoiding driving and alcohol. Consider a non-sedating antihistamine.

What other medicines interact with Oxymorphone?

MediHelp also lists interactions of Oxymorphone with, for example, Alvimopan, Ethanol, Isocarboxazid. The full list is on the Oxymorphone page.

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