Bifidobacterium longum PL03, Lactobacillus rhamnosus KL53A, and Lactobacillus plantarum PL02 in the prevention of antibiotic-associated diarrhea in children: a randomized controlled pilot trial

Digestion. 2008;78(1):13-7. doi: 10.1159/000151300. Epub 2008 Aug 14.


Aim: To determine the efficacy of a combination of Bifidobacterium longum PL03, Lactobacillus rhamnosus KL53A and Lactobacillus plantarum PL02 for the prevention of antibiotic-associated diarrhea in children.

Methods: Seventy-eight children (age: 5 months to 16 years) with otitis media, and/or respiratory tract infections, and/or urinary tract infections were enrolled in a double-blind randomized control trial in which they received standard antibiotic treatment plus a food supplement containing 10(8) colony-forming units of B. longum, L. rhamnosus and L. plantarum (n = 40) or a placebo (n = 38) orally twice daily for the duration of antibiotic treatment.

Results: Patients receiving probiotics had a similar rate of diarrhea (> or =3 loose or watery stools/day for > or =48 h occurring during or up to 2 weeks after the antibiotic therapy) as those receiving placebo (relative risk 0.5, 95% CI 0.06-3.5). The mean number of stools per day was significantly lower in the experimental group (mean difference -0.3 stool/day, 95% CI -0.5 to -0.07). No adverse events were reported.

Conclusion: The administration of the 3 probiotics did not significantly alter the rate of diarrhea, although it reduced the frequency of stools per day. As the overall frequency of diarrhea was surprisingly low, these results should be interpreted with caution.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Anti-Bacterial Agents / adverse effects*
  • Bifidobacterium*
  • Child
  • Child, Preschool
  • Diarrhea / chemically induced
  • Diarrhea / prevention & control*
  • Dietary Supplements
  • Double-Blind Method
  • Female
  • Humans
  • Infant
  • Lacticaseibacillus rhamnosus*
  • Lactobacillus plantarum*
  • Male
  • Otitis Media / drug therapy
  • Pilot Projects
  • Probiotics / therapeutic use*
  • Respiratory Tract Infections / drug therapy
  • Treatment Outcome
  • Urinary Tract Infections / drug therapy


  • Anti-Bacterial Agents