Research of letrozole in animal products have demonstrated that it causes congenital anomalies if applied through pregnancy, but there have been no reports of this drug in pregnant women.eleven, 13 Because anti-androgens can cause congenital anomalies, they tend to be taken with oral contraceptives to prevent pregnancy.14 Make sure to https://minibookmarking.com/story19335950/helping-the-others-realize-the-advantages-of-what-is-the-root-cause-of-pcos