"26.4% of Irish adults aged 15 years or older report using an illegal drug in their lifetime, 7.5% in the past 12 months and 4.0% in the past month.
"• Lifetime usage of cannabis (24.0%) is considerably higher than any other form of drug. The second most commonly used drug is ecstasy (7.8%) with lifetime usage of cocaine (including crack) and cocaine powder at 6.6% and 6.4% respectively.
"• Almost a fifth (19.9%) of Irish adults have used other opiates in the past month, with 43.4% doing so in the past 12 months and 61.5% having done so at some stage during their life. Results for other opiates are not comparable to previous waves of the survey due to wording and showcard changes (see showcard 138 in the technical report for a list of drugs included in the other opiates category).
"• Over 6 in 10 (62.1%) Irish adults have consumed alcohol in the past month, with past year and lifetime usage at 77.0% and 82.8% respectively.
"• Just over a quarter (25.1%) have smoked a tobacco product in the past month, with twice as many (50.9%) having done so at some stage during their life."

Source

"Prevalence of Drug Use and Gambling in Ireland and Drug Use in Northern Ireland – Bulletin 1," Government of Ireland, Department of Health, November 8, 2016, p. 6.
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