Clindamycin
"I had an infection in my wisdom tooth. My dentist gave me this antibiotic. After 2 days of taking it I got very sick. My stomach was hurting really bad to the point I was crying. I was vomiting. That only lasted a day. But now I week later I've been having the diarrhea like crazy. I've never went to the doctor yet cause I'm hoping this will just go away but I don't think it will. DO NOT take this antibiotic. Please don't. It's the worse if you get the side effects that I got."