birth control
"I was taking Yaz for about 6-7 months and had great results with decreased acne and shorter menstrual periods. However, the more I read about the drug, the more concerned I became about some of the side effects other people were having. However, I am not the type of person to imagine that side effects are happening to me. I have always tolerated most medications pretty well. So I thought everything was going well with Yaz. About 6-7 months into it, I started noticing that I was having a lot of muscle twitching. It was subtle at first but then it was constant. I finally went to my doctor and she said that I most likely had increased potassium, causing an electrolyte imbalance. (Which can be very dangerous if untreated). Hope this helps."