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MDMA Harm Reduction Information

MDMA is the shortened chemical name for the synthetic psychoactive drug 3,4-Methylenedioxymethamphetamine.

It can come in powder/crystal form and is also the active ingredient expected to be found in ecstasy pills which come in a variety of colours and shapes. Although pills may look the same, remember that the contents and purity can vary even among pills from the same batch. Powders and crystals carry the same risk and can also contain unknown contents or be high purity. 

What are the latest MDMA trends?

See our September 2021 update on the latest MDMA trends in Europe here

MDMA Harm Reduction 

It is always safer not to use at all, but if you do, follow harm reduction information below to reduce the harms:

Get more information on reducing the harms 

Get information on how MDMA interacts with other substances here

See our overdose information here.

For more harm reduction information go to

Concerned about your use?

Take the online self-assessment to identify the impact of your use: 

Getting support for substance use

If you are concerned about your own use or someone else’s use, contact a local service through the National Directory for Drug and Alcohol Services at

You can also contact the HSE Drug and Alcohol Helpline on 1800 459 459 from Monday to Friday between 9:30 am and 5:30 pm or email

Sexual health

For information about sexual health and wellbeing go to

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The HSE and Union of Students in Ireland (USI) ask students to think about drug safety measures when using club drugs
Harm reduction messages from the #SaferStudentNights campaign.
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