A prospective study of drugs and pregnancy. 3. Hormones.

Results froma prospective study in Malmö performed in 1963-65 are used to discuss the possible role of hormonal drugs in human fetal maldevelopment. Appr. 2 per cent of all women had a child born were treated with gestagens during early pregnancy and slightly more had used Primodos as a pregnancy test. No harmful effect on embryonic development can be demonstrated.