Yes, Faslodex may affect your periods if you haven’t gone through menopause yet. This is because Faslodex changes your hormone levels.
Faslodex decreases estrogen and progesterone levels in your body. These hormones are very important to the menstrual cycle. They help you ovulate, which causes your period to occur a few weeks later. Because your hormone levels will be affected, your period may become irregular or infrequent. In some women, it may stop completely.
Talk with your doctor if you have concerns about how Faslodex will affect your period.