There are no studies on women about the effect of minoxidil on the foetus during the pregnancy, on the animals there isn’t any teratogenic effect. Nevertheless, it is beacuse a little part of Minoxidil can go through the cutaneous barrier when it is used on the skin that we recommend to stop the treatment during the pregnancy. Finally, until the childbirth, hormonal changes will compensate the eventual hair loss due to minoxidil cease.