The Health Services Executive has issued a warning about high strength MDMA pills in circulation at the Electric Picnic festival.
It said that the drugs contain up to 300mg, three times the adult dosage and pose an extreme risk.
In a warning, the HSE said that the contents or purity of the drug cannot be certain and advised that it is safer not to use the drugs at all.
There are a number of drugs.ie tents and medical spaces at the festival, where drugs can be surrendered for analysis.
Festival-goers are encouraged to engage with the drug harm reduction team at the event.
This is the fourth year that the HSE has had a drug-checking programme operating at the festival, where trained volunteers will be available throughout the campsite.