Hi - I've been on Spiro for about 5 weeks, 100mg one dose daily. The first 3 weeks, I was very pleased with the clearing, less oil, etc . . . very little side effects. However, after my cycle the acne has become worse. Actually worse than it was before with the exception of no cysts, thank god! I can live with zits, but those cysts are killer! I have looked on another health boards posts, and it seems very normal that it gets worse before it gets better. So I am going to stick it out. It's hard to hang your hopes on something and have it get worse, so disheartening. I am hoping just a few more weeks, by the 3rd month will work better. That is the result most people report. Good luck and lets keep each other posted on the progress.