Clindamycin
"I have more of a concern/question than an experience to share. I have been taking Clindamycin 450 mgs 4 times daily....and started feeling a bit strange but nothing acutely abnormal just have felt off, so I came to read up on it & get other users reviews. Let's just say that had I known what could possibly happen weeks/months after stopping this drug, I wouldn't have taken it however now that I'm in half way through the prescription I've taken notice that in complete contradiction to the norm, I've had absolutely ZERO bowel movements in the last 6 days since starting this med & I'm getting concerned. Considering the norm reaction to this med is loose stools and/or diarrhea, I'm just concerned that it's doing something to my GI tract."