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Drug interactions

Methylenedioxymethamphetamine + Modafinil

Severity: Major

Methylenedioxymethamphetamine and Modafinil: major 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

MDMA is a potent serotonergic and sympathomimetic stimulant, and combining it with modafinil may increase heart rate, blood pressure, hyperthermia and agitation. Both drugs can mask fatigue, which may lead to prolonged exertion and dehydration.

What this interaction means in plain words

Methylenedioxymethamphetamine and Modafinil 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: Low

Why it happens

Additive CNS stimulant and sympathomimetic effects.

What to do

Advise avoiding MDMA; if exposure occurs, monitor temperature, cardiovascular parameters and hydration, with emergency care for hyperthermia or severe hypertension.

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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Frequently asked questions

Can I take Methylenedioxymethamphetamine with Modafinil?

MediHelp rates the interaction as major. Methylenedioxymethamphetamine and Modafinil 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 is a potent serotonergic and sympathomimetic stimulant, and combining it with modafinil may increase heart rate, blood pressure, hyperthermia and agitation. Both drugs can mask fatigue, which may lead to prolonged exertion and dehydration.

How serious is the interaction between Methylenedioxymethamphetamine and Modafinil?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise avoiding MDMA; if exposure occurs, monitor temperature, cardiovascular parameters and hydration, with emergency care for hyperthermia or severe hypertension.

What other medicines interact with Modafinil?

MediHelp also lists interactions of Modafinil with, for example, Lenacapavir, Leniolisib, Lorlatinib. The full list is on the Modafinil page.

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

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