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Drug interactions

Dosulepin + Milnacipran

Severity: Major

Dosulepin and Milnacipran: major interaction.

Last updated Sources: US FDA label

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 tricyclic with serotonin and norepinephrine reuptake inhibition, so combining it with milnacipran increases the risk of serotonin syndrome and noradrenergic cardiovascular effects. Tricyclic arrhythmic potential adds to the concern.

What this interaction means in plain words

Dosulepin and Milnacipran can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Dosulepin belongs to Central Nervous System; Milnacipran belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive serotonergic and noradrenergic reuptake inhibition.

What to do

Avoid combining if possible; if needed, use low doses and monitor ECG, blood pressure and serotonin toxicity signs.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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

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References

Frequently asked questions

Can I take Dosulepin with Milnacipran?

MediHelp rates the interaction as major. Dosulepin and Milnacipran can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Dosulepin is a tricyclic with serotonin and norepinephrine reuptake inhibition, so combining it with milnacipran increases the risk of serotonin syndrome and noradrenergic cardiovascular effects. Tricyclic arrhythmic potential adds to the concern.

How serious is the interaction between Dosulepin and Milnacipran?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining if possible; if needed, use low doses and monitor ECG, blood pressure and serotonin toxicity signs.

What other medicines interact with Milnacipran?

MediHelp also lists interactions of Milnacipran with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Milnacipran page.

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