I'm on it. Regular birth control doesn't help anymore. I think it may be causing hair loss, but I'm not sure if it's really from the norethindrone or because of one of my other conditions, but it's gotten worse since being on it. Otherwise, this medication works pretty well. No more daily excruciating pelvic cramps, no periods and all the horrible shit that comes with them when I have them. I don't think I've noticed any other side effects, GI seems unaffected. Been on it 4 months