"my dermatologist prescribed 100 mg minocycline, twice a day. once i started taking the pills, i got really dizzy during the day. so i decided just to take one pill at night before i go to bed instead of 2 a day. my skinn has cleared up a lot and it has only been 6 days. either take this pill one hour before eating or 2 hours after eating or you will feel sick. plus drink a lot of water."