I have used examestane (aromasin) for the past 2.5 years. My lipid panels have been perfect during this time. I was concerned about that when I used arimedex. I use a research liquid AI and liquid a-dex did not work for me at all (to the point of starting to develop gyno). I take about 12.5 mg per day, but if I miss a day, it’s not big deal.