The Primodos Scandal - Part 1

What the Evidence Says

In 1956, Oral hormones, such as Primodos, were used as pregnancy tests (HPTs). They contained ethinylestradiol and norethisterone, the latter in much larger amounts than those included in current combined oral contraceptives. They were supposed to work by inducing bleeding similar to menstruation in those who were not pregnant.

Schering, the manufacture…