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Canadian Journal of Gastroenterology
Volume 21, Issue 11, Pages 732-736
Original Article

Effect of a Fermented Milk Combining Lactobacillus Acidophilus CL1285 and Lactobacillus Casei in the Prevention of Antibiotic-Associated Diarrhea: A Randomized, Double-Blind, Placebo-Controlled Trial

Mélanie Beausoleil,1 Nadia Fortier,1 Stéphanie Guénette,1 Amélie L’Ecuyer,1 Michel Savoie,1 Martin Franco,1 Jean Lachaîne,2 and Karl Weiss3

1Department of Pharmacy, Maisonneuve-Rosemont Hospital, Canada
2Department of Clinical research, University of Montreal, Canada
3Department of Microbiology and Infectious diseases, Maisonneuve-Rosemont Hospital, Montreal, Quebec, Canada

Received 16 January 2007; Accepted 2 March 2007

Copyright © 2007 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


BACKGROUND: Antibiotic-associated diarrhea is an important problem in hospitalized patients. The use of probiotics is gaining interest in the scientific community as a potential measure to prevent this complication. The main objective of the present study was to assess the efficacy and safety of a fermented milk combining Lactobacillus acidophilus and Lactobacillus casei that is widely available in Canada, in the prevention of antibiotic-associated diarrhea.

METHODS: In this double-blind, randomized study, hospitalized patients were randomly assigned to receive either a lactobacilli-fermented milk or a placebo on a daily basis.

RESULTS: Among 89 randomized patients, antibiotic-associated diarrhea occurred in seven of 44 patients (15.9%) in the lactobacilli group and in 16 of 45 patients (35.6%) in the placebo group (OR 0.34, 95% CI 0.125 to 0.944; P=0.05). The median hospitalization duration was eight days in the lactobacilli group, compared with 10 days in the placebo group (P=0.09). Overall, the lactobacilli-fermented milk was well tolerated.

CONCLUSION: The daily administration of a lactobacilli-fermented milk was safe and effective in the prevention of antibiotic-associated diarrhea in hospitalized patients.