HealthMap

Lactobacillus rhamnosus GG and Antibiotic-Associated Diarrhea

Overview

• Lactobacillus rhamnosus GG (LGG) is one of the most extensively researched probiotic strains for the prevention and reduction of antibiotic-associated diarrhea (AAD).
• Antibiotics disrupt the natural balance of the intestinal flora, often leading to opportunistic pathogen overgrowth and subsequent digestive distress.

Mechanism of Action

• Restoration of Flora: LGG helps recolonize the gastrointestinal tract with beneficial bacteria during and after antibiotic therapy.
• Pathogen Inhibition: It produces lactic acid and other antimicrobial substances that inhibit the growth of harmful bacteria, such as Clostridioides difficile.
• Barrier Support: It reinforces the intestinal mucosal barrier, reducing gut permeability and fluid loss.

Clinical Evidence

• Clinical studies consistently demonstrate that co-administration of LGG with antibiotics significantly lowers the incidence of antibiotic-induced diarrhea in both adults and children.
• It is particularly effective in preventing C. difficile-associated diarrhea in vulnerable populations.

Recommendations for Use

• Timing: Probiotics should generally be taken at least two to three hours apart from the administration of antibiotics to prevent the medication from killing the beneficial bacteria.
• Duration: Supplementation should typically continue for several days after the full course of antibiotics is completed to help fully restore the microbiome.
• Quality: Ensure the use of a stable, high-viable-count supplement specific to the Lactobacillus rhamnosus GG strain.