this patented strain of Lactobacillus reuteri DSM17648 seems to have quite a bit of favorable research with high quality evidence that it can eradicate/reduce an H Pylori overgrowth:
• Treatment with omeprazole + Protectis eradicated H. pylori in 60% of subjects after 30 days compared to none in the placebo + omeprazole group (P<0.0001) [Saggioro et al, 2005]

• In H. pylori-positive adults, administration of Lactobacillus reuteri DSM 17938 (4 x 10^8 CFU/day) for 4 weeks significantly decreased urea breath test (P<0.05) demonstrating suppression of H. pylori urease activity and H. pylori density. [Imase et al, 2007]

• H. pylori-infected adults received either Lactobacillus reuteri DSM 17938 (10^8 CFU/day; n=20) or placebo (n=20) for 28 days, followed by a 10-day sequential PPI/antibiotic regimen. No significant differences were observed between groups with respect to H. pylori eradication rates after completion of the the regimen (P=0.8). [Francavilla et al, 2008]

• In H. pylori-positive adults (n=40), concurrent Lactobacillus reuteri DSM 17938 three times daily for 14 days, with second line antibiotic therapy (esomeoprazole 20mg, levofloxacin 500mg and amoxicillin 1g, all twice daily for 7 days), significantly increased H. pylori eradication rates (P<0.05) and reduced the incidence of nausea and diarrhoea. [Ainora et al, ]

 focus on gut healing first and foremost