Psychopharmacological agents are frequently used and often for a long time because of the chronicity of mental illness. Ayd reports that about 250 million people have taken these drugs. 3 This number probably includes a considerable number of pregnant women. The safety of psychotropic drugs for the fetus has not been established with certainty, even though none except thalidomide is incriminated. The conclusive evidence can only be obtained by monitoring of fetal effects. In this paper, the fetal effects, particularly teratogenesis, of the psychopharmacologic agents are reviewed.