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Drug interactions

Clomipramine + Methylenedioxymethamphetamine

Severity: Major

Clomipramine and Methylenedioxymethamphetamine: 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

MDMA releases serotonin and norepinephrine, and clomipramine blocks their reuptake, so together they raise the risk of serotonin syndrome, hypertension, tachycardia and arrhythmias. Clomipramine may also alter MDMA effects unpredictably and CYP2D6 competition may raise levels.

What this interaction means in plain words

Clomipramine and Methylenedioxymethamphetamine 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.

Evidence level: Moderate

Why it happens

Additive serotonergic and noradrenergic activity, with possible CYP2D6-mediated pharmacokinetic interaction.

What to do

Avoid the combination and counsel patients against recreational MDMA use. Provide urgent care if hyperthermia, agitation or marked hemodynamic changes occur.

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 Clomipramine with Methylenedioxymethamphetamine?

MediHelp rates the interaction as major. Clomipramine and Methylenedioxymethamphetamine 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. MDMA releases serotonin and norepinephrine, and clomipramine blocks their reuptake, so together they raise the risk of serotonin syndrome, hypertension, tachycardia and arrhythmias. Clomipramine may also alter MDMA effects unpredictably and CYP2D6 competition may raise levels.

How serious is the interaction between Clomipramine and Methylenedioxymethamphetamine?

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 the combination and counsel patients against recreational MDMA use. Provide urgent care if hyperthermia, agitation or marked hemodynamic changes occur.

What other medicines interact with Clomipramine?

MediHelp also lists interactions of Clomipramine with, for example, Arsenic trioxide, Dofetilide, Droperidol. The full list is on the Clomipramine page.

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