bacterial infection
"I had a bad, bad tooth infection and needed a root canal. Dentist gave me clindomyacin ...400 mg 4 times per day for 2 weeks! Then after the root canal he wanted me to take another round of it! But the second time I took 1-2 days worth and said, "That's enough. No more. I'm rollin' the dice on this one." It tore up my stomach. It's two months later now and having to have an endoscopy to see what damage it has done. I was doing real good before taking the Clindomyacin. Never again! It's on my "do not ever take list."  If I had it to do over again, knowing what I know now, I truly would have just had the tooth pulled. My stomach has not been the same since. Also had explosive bowel problems with it, going 4-5 times per day!"