Optimizing clarithromycin-containing therapy for Helicobacter pylori in the era of antibiotic resistance

Table 1 Impact of adding probiotics to eradication therapy (mostly standard triple therapy) on eradication rates and side effects, evaluated in seven recent meta-analyses

Ref.	Probiotic strains	Eradication rates	Side effects
Tong et al[24], 2007	Lactobacillus and bifidobacterium	Significant	Significant
Wang et al[25], 2013		increase	Reduction
Sachdeva et al[26], 2009	Lactoferrin	Significant	Significant
Zou et al[27], 2009		Increase	Reduction/No impact
Sachdeva et al[28], 2009	Fermented milk	Significant Increase	No impact
Zou et al[29], 2009	Lactobacillus	Significant	Significant
		Increase	reduction
Szajewska et al[30], 2010	Saccharomyces boulardii	Significant increase	Significant reduction