In the largest meta-analysis to date (82 trials, >11,000 participants), probiotics reduced antibiotic associated diarrhea by 42% (RR 0.58, CI 0.50 to 0.68, p<.001). Although this still does not settle the debate about the best probiotic preparation, there is substantial evidence that they reduce antibiotic associated diarrhea (abstract)
Dr. Scheurer is a clinical hospitalist and the Medical Director of Quality and Safety at the Medical University of South Carolina in Charleston, South Carolina, and is Assistant Professor of Medicine. She is a graduate of the University of Tennessee College of Medicine, completed her residency at Duke University, and completed her Masters in Clinical Research at the Medical University of South Carolina. She also serves as the Web Editor and Physician Advisor for the Society of Hospital Medicine.