I had the complete opposite effect. When I started the Trileptal, I was having breakthrough bleeding constantly. It was so frustrating. I went to the doc and they would give me pills with higher hormonal levels, or something like that, each time. I almost wanted to quit it, but I felt great on the Trileptal outside of that. So when I went to the gyno she gave me the nuva ring since the pill and my Trileptal both metabolize through the liver. Periods have been extremely light ever since. Oh the joys of being a female...