There were 937 cases in a ten year period.
Nearly 100 newborn babies are treated in hospital in every year for drug-withdrawal symptoms.
It's due to their mothers' use of addictive substances during pregnancy, such as cocaine and heroin.
These new figures have been released by the HSE, under the Freedom of Information Act.
They relate to the number of newborn babies that are treated in hospital for withdrawal symptoms, as a result of their mothers' use of addictive drugs during pregnancy.
There were a total of 937 such cases in the 10-year period between 2011 and 2020 - with 85 in 2020 itself.
The HSE says the infant is followed up by the baby clinic after being discharged - and the mother is followed up by the social worker, public health nursing and Tusla, as required.
Dr Mary McCaffrey is a consultant obstetrician Gynaecologist - she explains the problems these babies develop.

"When I Look Back At It, I Had All The Symptoms": Kildare Resident On His Diagnosis, As April Marks Bowel Cancer Awareness Month
Calls For Reform After Garda Convicted Over Scrambler Pursuit
Cost Motor Insurance Continues To Rise, With Insurance On A Car Now Averaging Over €650
Minister Lawless Announces Expansion of Student Grant Supports As SUSI Opens 2026/27 Applications
A New Bill To Recognise Unborn Children As Road Crash Victims Launched
Calls To Abolish The Sub-Minimum Wage Rate For Those Under 20
Commander Alex Quigley Report's High Morale Among Irish Troops In Lebanon
Three People Arrested Over Suspected Murder Of William Delaney Released Without Charge