People are being advised to only drink the recommended amounts of alcohol.
There are reports off-licences are seeing a spike in sales as people stock-up with booze at home.
The World Health Organisation says it's an unhelpful coping strategy during the Covid-19 crisis.
Alcohol Action Ireland's Eunan McKinney says people need to look after their mental health:
"Please try to observe it within a low-risk relationship. Try to stay within the low-risk alcohol guidelines, which are to remind people are 11 standard drinks for women and 17 standard drinks for men and try and have two or three free days of alcohol during that time."