The HSE says it's monitoring reports of students having their drinks spiked.
It comes after a number of first and second year students at MTU say they've had their drinks spiked while socialising at a venue in Tralee.
The students - both male and female - complained of feeling disorientated and ill, despite consuming only small amounts of alcohol.
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Police in England are also investigating dozens of complaints from women who've been spiked by injection.
Dr Eamon Keenan, the HSE's National Clinical Lead for Addiction Services, says it's worrying: