Drug interactions
Diazepam + Methylenedioxymethamphetamine
Severity: Moderate
Diazepam and Methylenedioxymethamphetamine: 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
MDMA is a stimulant that may mask diazepam's sedation, while diazepam is sometimes used to treat MDMA-related agitation. The combination can hide impairment, and MDMA toxicity (hyperthermia, tachycardia) may persist despite apparent calming.
What this interaction means in plain words
Diazepam and Methylenedioxymethamphetamine 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.
Why it happens
Opposing pharmacodynamic effects: GABAergic sedation versus serotonergic and sympathomimetic stimulation.
What to do
Do not rely on sedation level to judge intoxication; monitor temperature, heart rate and blood pressure in MDMA exposure. Benzodiazepines are appropriate for MDMA-related agitation under clinical supervision.
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?
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Other interactions of Diazepam
Frequently asked questions
Can I take Diazepam with Methylenedioxymethamphetamine?
MediHelp rates the interaction as moderate. Diazepam and Methylenedioxymethamphetamine 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. MDMA is a stimulant that may mask diazepam's sedation, while diazepam is sometimes used to treat MDMA-related agitation. The combination can hide impairment, and MDMA toxicity (hyperthermia, tachycardia) may persist despite apparent calming.
How serious is the interaction between Diazepam and Methylenedioxymethamphetamine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not rely on sedation level to judge intoxication; monitor temperature, heart rate and blood pressure in MDMA exposure. Benzodiazepines are appropriate for MDMA-related agitation under clinical supervision.
What other medicines interact with Diazepam?
MediHelp also lists interactions of Diazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Alfentanil, Alprazolam. The full list is on the Diazepam page.
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