Amoxicillin / clavulanate
"Took medicine for in ear infection. When I was on my last four pills 2x a day I ran into diarrhea. Got switched to plain amoxicillin for my last 4 pills and I have been done with pills for a week now but still have diarrhea going on day 11 and have to submit stool sample to doctor tomorrow to see what's wrong."