Ethinyl estradiol / levonorgestrel
"I have been on Portia off and on for the past few years. My pharmacy kept telling me that Levora was the same which seemed pretty true. I have NO PERIOD. I thought something was wrong with me but nope, I got all checked out by a OB and the pill just causes me to not bleed which is fine by me, I do however get sore breast every month when it should be my period and I have slight mood swings. Overall I think it's a good pill."