HSE Warning: One in Four Ecstasy Pills Contains Dangerous Double Dose as Festival Season Begins
HSE warns 1 in 4 ecstasy pills now contain dangerous double doses as festival season starts. New designer drugs also appearing in Ireland.

As the summer festival season kicks off, health officials are sounding the alarm over a dramatic spike in dangerous drug potency, with laboratory testing revealing that 25% of ecstasy pills now contain more than double the typical adult dose of MDMA.
The Health Service Executive has issued an urgent warning ahead of major summer events, revealing that new designer drugs and significantly stronger MDMA are now circulating across Ireland, posing unprecedented risks to users.
HSE testing results show a concerning trend in MDMA strength over recent years. In 2022, pills ranged from 50mg to 235mg, but by 2024, the lowest amount found was 139mg whilst the highest reached 267mg. This means that what users might assume is a single dose could actually contain enough MDMA to cause serious harm or accidental overdose.
Professor Eamon Keenan, HSE National Clinical Lead for Addiction Services, said:
"Our core message is that it is safer not to use drugs at all, and there is always personal risk for people who do use drugs. Ahead of large events starting this summer, we urge people to look at our information and stay informed on the current drug market. It is a concerning time as risks are increasing as a result of drug market changes, with new drugs starting to appear across European markets which can have unpredictable effects."
The warning comes as new types of ketamine, known as ketamine analogues or designer drugs, begin appearing in Ireland. These substances are designed to mimic ketamine but can have much stronger and unpredictable effects, particularly dangerous when combined with other substances.
Nicki Killeen, HSE Emerging Drug Trends Project Lead, explained:
"We are aware from delivering last year's Safer Nightlife Programme and analysing substances at events, that MDMA is increasing in potency, meaning that one pill may contain more than the average adult dose which increases the risks for people. We also identified a pattern of people mixing MDMA powder in drinks leading to drug emergencies."
The HSE emphasises that users cannot determine a substance's contents or strength simply by appearance, and even small amounts of these new drugs could have serious health consequences.
For those attending festivals and events, the HSE recommends several critical safety measures: recognising early warning signs of drug emergencies such as high temperature, headaches, confusion, or anxiety; avoiding mixing multiple substances including alcohol and prescription medications; staying with trusted friends; and seeking immediate medical help if concerned about reactions.
The organisation stresses that festival medics prioritise wellbeing over legal concerns, encouraging people to seek help without delay if they suspect a drug emergency.
Full harm reduction guidance and current market trend information is available at drugs.ie, with specific updates on MDMA and ketamine risks published for the 2025 festival season.