Ethinyl estradiol / norethindrone
"I've been on this pill for almost 2 months and it's given me horrible headaches. I never get headaches. I've tried taking Advil and Tylonal but nothing seems to help. I've had large blood clots and spotting. This will most likely be my last month as it's not worth the side effects. My doctor prescribed it for endometriosis and heavy periods. I'd rather have my 12 day heavy periods than constant headaches, huge blood clots and spotting."