surgical prophylaxis
"Clindamycin is a good drug for oral bacteria and since I had a allergy to penicillin, I was prescribed this x 5 days after my oral surgery.  First dose caused terrible heartburn and nausea.  I was very nervous about vomiting after mouth surgery.  The next dose I took with a big glass of water, yogurt and applesauce and sat up for 30 minutes--no problems after that.  Except for watery diarrhea which started day after stopping.  Keeping well hydrated and taking my probiotics should help."