This pill was a miracle for my skin.
I was prescribed this pill for acne and hirtuism. I'm prone to hormonal acne, and pretty much tried everything. I started using Spiro (along with Epiduo) about 2 years ago. I was put on 50mg/2x per day, which didn't do anything. I upped it to 100mg/2x day, and the changes began. For a few weeks, I had HORRIBLE purging; I would take photos of my face every week, and it was rough. I guess between the oral and topical, it was extra bad. But around the 3rd week, things began to clear up. For over a year, I didn't see one pimple. The dark spots left over from prior breakouts finally had a chance to lighten up. I also noticed my period became regular like clockwork (I've always been very irregular). As for the hirtuism, I honestly didn't notice too much. I think I was paying more attention to the acne.
My only cons: It depletes your potassium, so you may end up with leg cramps (or wherever on your body). Also, you should get your blood checked maybe twice a year; the medication can mess with your creatinine numbers.