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Objective: To review the literature on the role of probiotics as adjunctive therapy in the treatment of Helicobacter pylori infections., Data Sources: Literature was accessed through MEDLINE (1966-March 2011) using the terms H. pylori, probiotic, Lactobacillus, Bifidobacterium, Saccharomyces, Bacillus clausii, and Propionibacterium. Article references were hand-searched for additional relevant articles and abstracts., Study Selection and Data Extraction: All English-language articles published in full were evaluated. Randomized, double-blind, placebo-controlled trials assessing the use of probiotics combined with standard eradication therapy of H. pylori infection in adults were included in the review., Data Synthesis: Various probiotics, including Lactobacillus spp., Saccharomyces spp., Bifidobacterium spp., and B. clausii, reduce adverse effects such as nausea, taste disturbance, diarrhea, and epigastric pain, and increase tolerability of H. pylori eradication therapy. Based on the studies reviewed, probiotics do not affect H. pylori eradication rates., Conclusions: Probiotics may be beneficial in reducing adverse effects and increasing tolerability of H. pylori eradication regimens. They may especially be helpful in patients with recurrent H. pylori infection and a history of gastrointestinal adverse effects with antibiotics. Pharmacists can play an important role in educating patients regarding probiotic use during H. pylori eradication therapy.

Objectives: Several studies show that probiotics may prevent side effects during therapy against Helicobacter pylori (H. pylori). Other reports indicate competitive interaction between some probiotics and H. pylori. We compared efficacy of two different probiotics and one probiotic combination with placebo for preventing anti-H. pylori therapy-related side effects and for improving the eradication rate., Methods: A total of 85 H. pylori positive, asymptomatic patients were randomized in four groups to receive probiotic or placebo both during and for 7 days after a 1-wk triple therapy scheme (rabeprazole 20 mg b.id., clarithromycin 500 mg b.i.d., and tinidazole 500 mg b.i.d.). Group I (n = 21) received Lactobacillus GG; group II (n = 22), Saccharomyces boulardii; group III (n = 21), a combination of Lactobacillus spp. and biphidobacteria; and group IV (n = 21), placebo. Subjects filled in weekly symptom questionnaires for 4 wk. Blinded investigators collected and analyzed data. H. pylori status was rechecked after 5-7 wk., Results: Side effects occurred mainly during the eradication week. None of them caused therapy discontinuation. In all probiotic-supplemented groups, there was a significantly lower incidence of diarrhea and taste disturbance during the eradication week with respect to the placebo group. Overall assessment of tolerability was significantly better in the actively treated patients than in the placebo group. No differences in the incidence of side effects between the probiotic groups were observed. The H. pylori eradication rate was almost identical between the probiotic and placebo groups., Conclusions: All the probiotics used were superior to placebo for side effect prevention, but were not associated with better compliance with antibiotic therapy. The effect of probiotic supplementation on side effects during anti-H. pylori regimens seemed to be independent of the probiotic species used.

Background: One-week triple therapy is currently regarded as the reference of anti-Helicobacter pylori treatment. However, antibiotic-associated gastrointestinal side effects are among the major pitfalls of such regimens. Probiotic supplementation may be regarded as a therapeutic tool to prevent or reduce these troublesome drug-related manifestations., Aim: To determine whether the addition of the probiotic Lactobacillus GG to an anti-H. pylori standard triple therapy could help to prevent or minimize the occurrence of gastrointestinal side effects., Methods: One hundred and twenty healthy asymptomatic subjects screened positive for H. pylori infection and deciding to receive eradication therapy were randomized either to 1-week pantoprazole (40 mg b.i.d.), clarithromycin (500 mg b.i.d.), tinidazole (500 mg b.i.d.) or to the same regimen supplemented with Lactobacillus GG for 14 days. Patients filled in validated questionnaires during follow-up to determine the type and severity of side effects and to judge overall tolerability., Results: Bloating, diarrhea and taste disturbances were the most frequent side effects during the eradication week and were significantly reduced in the Lactobacillus GG-supplemented group (RR = 0.4, CI 0.2-0.8; RR = 0.3, CI 0.1-0.8; RR = 0.3, CI 0.1-0.7, respectively). The same pattern was observed throughout the follow-up period. Overall assessment of treatment tolerability showed a significant trend in favor of the Lactobacillus GG-supplemented group (p = 0.03)., Conclusions: Lactobacillus GG supplementation beneficially affects H. pylori therapy-related side effects and overall treatment tolerance., (Copyright 2001 S. Karger AG, Basel)