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Drug interactions

Desipramine + Dexfenfluramine

Severity: Moderate

Desipramine and Dexfenfluramine: 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

Dexfenfluramine is a serotonergic agent that has been withdrawn from the market in most countries. Combination with a tricyclic antidepressant could contribute to serotonergic toxicity, but available data are limited.

What this interaction means in plain words

Desipramine and Dexfenfluramine 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.

Evidence level: Low

Why it happens

Additive serotonergic effects are theoretical; the sympathomimetic reuptake interaction is not well established for this drug.

What to do

Avoid concurrent use. If a patient is exposed, monitor for serotonin toxicity such as agitation, tremor, hyperthermia and hyperreflexia.

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 Desipramine with Dexfenfluramine?

MediHelp rates the interaction as moderate. Desipramine and Dexfenfluramine 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. Dexfenfluramine is a serotonergic agent that has been withdrawn from the market in most countries. Combination with a tricyclic antidepressant could contribute to serotonergic toxicity, but available data are limited.

How serious is the interaction between Desipramine and Dexfenfluramine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concurrent use. If a patient is exposed, monitor for serotonin toxicity such as agitation, tremor, hyperthermia and hyperreflexia.

What other medicines interact with Desipramine?

MediHelp also lists interactions of Desipramine with, for example, Disopyramide, Dofetilide, Ibutilide. The full list is on the Desipramine page.

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

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