Tylenol use in pregnancy may be linked with uterus, ovary changes in daughters

Female reproductive organ development may be impacted by a mother's use during pregnancy of Tylenol or its generic versions, according to researchers who emphasize that their study does not prove the pain medicine is to blame and does not indicate any effect on future fertility.

Whether the differences observed in the Danish study of infants have implications for fertility later in life and age at menopause will require long-term follow-up, study leader Margit Bistrup Fischer of Rigshospitalet in Copenhagen said in a statement.

Women who during pregnancy used the medicine, typically sold generically as paracetamol in Europe, should not be alarmed by the findings, Fischer said. The generic version of Tylenol sold in the U.S. is acetaminophen.

Kenvue, which owns the Tylenol brand name product, in an emailed statement advised pregnant or breastfeeding women to check with a health professional before using acetaminophen, which the company says is the most studied and safest pain reliever during pregnancy.

It noted that the study has methodology limitations and does not support a causal relationship between the drug and postnatal reproductive development. Kenvue shares were off more than 3%.

Fischer's team studied 302 3-month-old girls whose mothers' use of some version of the…

Original source: https://www.usatoday.com/money/