Doxycycline
"I'm a 22 year old female who has struggled with acne since I was 11. I have been on doxycycline (100 mg/day) for the past few years but have struggled with taking it as prescribed (daily) because of the severity of the nausea/vomiting that would cause me to miss school. I talked to my dermatologist and she prescribed me a coated tablet, which was significantly easier to digest. Down side: the coated tablet was much more expensive, even with good insurance. With the coated tablet, I notice no negative side-effects. This medication works fast. As soon as I would begin taking it for 5-7 days straight, I would notice a difference in my face, fewer new breakouts. As soon as I stopped, however, the breakouts would begin to slowly appear again."