"I was on Yaz for 4 years, I really liked it. I didn&#039;t gain weight, but I did notice my period wouldn&#039;t start until right before I would be starting a new pack. I switched to the generic to save money and right away I noticed my period symptoms became much more severe then before. I then switched to Beyaz. I didn&#039;t notice it a first but my sex drive was diminishing, I first blamed it on stress but after 6 months I realized that something was really wrong. I went from having a very healthy sex drive to not having one at all, I was also a lot more moody then before. I really don&#039;t recommend anyone taking this medication. What&#039;s the point of being on birth control if your not going to WANT to have sex."