birth control
"This worked really well to regulate my periods for about a year and a half but recently it has seemed to stop working. My periods are back to being as irregular as they were before I took the pill. It also made the nausea I get during my periods much worse. I am currently only taking it for clearing my acne (be warned my acne came back only a week after being off of it and was much worse than before) and till my prescription ends."