Primodos was the pregnancy test pill containingsynthetic hormones that was prescribed to millions of women during the 50s, 60s and 70s that caused severe congenital malformations, stillbirths and miscarriages.Primodos contained etihylestradiol and norethisterone - two synthetic hormones that are still prescribed every day as contraception to millions of women.
These risks were covered up by Schering, the drug company, and the Committee of Safety of Medicine decided not to warn people of the harms of these synthetic hormones as they did not want women to be “scared away” from taking contraceptive pills which contain the same synthetic hormones.
In 1970, Marie Lyon’s GP prescribed her Primodos tablets to find out whether she was pregnant with her first baby. Nobody mentioned any risks, and when her daughter Sarah was born with part of her arm missing, Marie was told “these things happen”.
She has campaigned for decades as chair of the Association for Children Damaged by Hormone Pregnancy Tests. Millions of women were prescribed Primodos with countless harms to these women’s babies until it was banned many years after the initial warnings were reported.
Louise explains why synthetic versions of estrogen and progesterone can be harmful and the problems with prescribing them to pregnant women without proper testing. They talk about the early warnings that were completely dismissed, why so many mothers still blame themselves, and why Marie believes an apology by the drug company is no longer enough.
If your mother took this synthetic hormone pregnancy test, Marie’s advice is to ask your GP for your records. She closes with the three changes she wants to see in how medicines are regulated.
Chapters
00:00 What was the Primodos scandal?
01:27 How were pregnancy tests done before Primodos?
02:30 Where did synthetic hormones come from?
05:13 How did the pill become a pregnancy test?
06:14 What did Marie's GP tell her?
08:01 Was Primodos ever tested in pregnancy?
09:20 Did the drug company know about the risks?
10:39 What happened when Sarah was born?
11:24 When did families make the connection?
12:20 Who was Dr Bill Inman?
16:01 Who was Dr Isabel Gal?
18:38 What does duty of care mean once you know?
19:17 Which birth defects were reported?
21:05 How do you find out if your mother took Primodos?
25:42 Are synthetic hormones still causing harm?
28:31 Why weren't condoms made free?
32:00 Why isn't an apology enough?
33:01 What three changes does Marie want?
Let’s connect
👉 Understand the difference between synthetic and body-identical hormones in my book, The Power of Hormones:
👉 More from Dr Louise Newson:
https://linkin.bio/drlouisenewson