Medicine safety information for mothers – Teratological information service
Keywords:- medicine safety information for mothers
We provide information on medications and other external factors that have an adverse impact on fertility, pregnancy and fetal development. We also advise you on all medication issues during breastfeeding. You can contact us when you are only just planning the pregnancy.
Teratological information service chat (opens in new window, links to another website)
In our chat service, we can provide generalized answers concerning the suitability of particular medications for pregnant and breastfeeding women. Our chat service is open on Mon and Fri from 13:00 to 15:00.


We make no comment on how the mother, the pregnancy, or the child are cared for, and we do not prescribe medications. When the service is not open, please contact your local maternity clinic. If you want to talk about exposure and risks at work, please contact your occupational health care service in the first instance.
We can also be contacted by health care professionals, pharmacies, the authorities, and the media. Health care professionals may also contact us with patient-related queries by e-mail at: konsultaatiot.teratologinen@hus.fi. We do not respond to questions sent by the general public by e-mail.
If you cannot find an answer to your question here, please contact us either by phone or via the chat
Hoping to get pregnant – important to take into account already when planning pregnancy (opens in new window, links to another website)
Many exposures can adversely affect fertility. The differentiation of the fetal organs begins as soon as you miss your menstrual period, and the weeks during the first trimester of pregnancy are a vulnerable time for fetal malformations. Therefore, already when planning...

Pregnancy and folic acid (opens in new window, links to another website)
Adequate intake of folate (dietary form), a vitamin of the B complex, and folic acid (a form in vitamin supplements) is important for the normal development of the fetus. In several population-based studies, the adequate intake of folic acid has been shown to reduce the...
