Drug interactions
Methamphetamine + Methylenedioxymethamphetamine
Severity: Major
Methamphetamine 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
Both are amphetamine-type stimulants that release monoamines, and MDMA also strongly releases serotonin. Combined use markedly increases risk of hypertension, tachycardia, hyperthermia, arrhythmia and serotonin toxicity.
What this interaction means in plain words
Methamphetamine 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.
Why it happens
Additive monoamine release causing sympathomimetic and serotonergic toxicity.
What to do
Avoid combined use. Treat toxicity with supportive care, including cooling, benzodiazepines and cardiovascular monitoring.
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?
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References
Other interactions of Methamphetamine
- Isocarboxazid + Methamphetamine Contraindicated
- Linezolid + Methamphetamine Contraindicated
- Methamphetamine + Phenelzine Contraindicated
- Methamphetamine + Procarbazine Contraindicated
- Methamphetamine + Rasagiline Contraindicated
- Methamphetamine + Safinamide Contraindicated
Frequently asked questions
Can I take Methamphetamine with Methylenedioxymethamphetamine?
MediHelp rates the interaction as major. Methamphetamine 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. Both are amphetamine-type stimulants that release monoamines, and MDMA also strongly releases serotonin. Combined use markedly increases risk of hypertension, tachycardia, hyperthermia, arrhythmia and serotonin toxicity.
How serious is the interaction between Methamphetamine 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 combined use. Treat toxicity with supportive care, including cooling, benzodiazepines and cardiovascular monitoring.
What other medicines interact with Methamphetamine?
MediHelp also lists interactions of Methamphetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Methamphetamine page.
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