Dr Sam Coulter-Smith says "there isn't universal agreement between psychiatrists" on the subject
The former master of the Rotunda Hospital says he is still not totally convinced that the termination of a pregnancy is a treatment for someone considering suicide.
Legislation introduced in 2013 allows for terminations in cases that present a risk to the life of the mother.
Sam Coulter-Smith says that there has not been an increase in the number of women seeking abortions on suicidality grounds since the new laws were introduced - despite his initial concerns.
However, he remains unconvinved that an abortion is required in these situations.
Speaking to Colette Fitzpatrick, Dr Coulter-Smith explained, "I'm not a psychiatrist, so I'm not an expert on mental health issues. Mental health is a huge issue in pregnancy.
"I'm not totally convinced - I've talked to a number of psychiatrists about this, and there isn't universal agreement between psychiatrists - that termination of a pregnancy is a treatment for someone who has suicidal ideation," he observed.