More people are using illegal stimulants, smoking less, and binge drinking remains high.
That's according to a new report from the Health Research Board, after surveying almost 6,000 people.
Seven percent of those who took part have used an illegal drug in the last year, with men twice as likely to use drugs than women.
Cocaine use in Ireland has doubled since 2003, with the drug most popular among 25 to 34-year-old men.
More than 9 in 10 people who used cocaine in the last year drank alcohol at the same time.
However, cannabis remains the most common drug in the country.
Main Image: Cocaine with razor blade and bank note. Image: Christoph Hardt/Geisler-Fotopres/DPA/PA Images