Orlistat is a weight loss drug, and there is no definitive data to prove whether or not this drug can be taken during pregnancy. If this drug is used during pregnancy, although there is no specific data on whether it may cause fetal malformations, it is advisable to terminate the pregnancy from the point of view of eugenics. In the case of a precious child, it is advisable to take appropriate tests during pregnancy to understand the development of the fetus, such as an ultrasound examination when the pregnancy is first discovered to see if the current size of the embryo matches the number of days of menopause, and to keep going to the hospital throughout the pregnancy according to the doctor’s instructions to see if there is a possibility of fetal malformation before dealing with it accordingly.