Studies of letrozole in animal models have proven that it causes congenital anomalies if employed throughout pregnancy, but there have been no reports of the drug in pregnant Girls.11, 13 Because anti-androgens can cause congenital anomalies, they in many cases are taken with oral contraceptives to stop pregnancy.fourteen You'll want https://dralpersismanoglu.com/en/tag/what-are-the-four-stages-of-pcos/