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Drug interactions

Codeine + Dosulepin

Severity: Moderate

Codeine and Dosulepin: 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

Dosulepin is a sedating tricyclic antidepressant that adds to opioid-induced CNS depression and anticholinergic effects. Serotonergic effects and CYP2D6 competition may also occur.

What this interaction means in plain words

Codeine and Dosulepin 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.

Codeine belongs to Musculoskeletal; Dosulepin belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive CNS depression; possible CYP2D6 competition and serotonergic effects.

What to do

Use the lowest effective doses and monitor for sedation, constipation and urinary retention. Warn patients against alcohol and driving.

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 Codeine with Dosulepin?

MediHelp rates the interaction as moderate. Codeine and Dosulepin 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. Dosulepin is a sedating tricyclic antidepressant that adds to opioid-induced CNS depression and anticholinergic effects. Serotonergic effects and CYP2D6 competition may also occur.

How serious is the interaction between Codeine and Dosulepin?

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 monitor for sedation, constipation and urinary retention. Warn patients against alcohol and driving.

What other medicines interact with Codeine?

MediHelp also lists interactions of Codeine with, for example, Alvimopan, Isocarboxazid, Olanzapine / samidorphan. The full list is on the Codeine 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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