Helicobacter Pylori Eradication With Berberine Quadruple Therapy Versus Clarithromycin Quadruple Therapy

This study aims at evaluating efficacy and safety of berberine-containing quadruple therapy(berberine, lansoprazole, bismuth and amoxicillin) versus clarithromycin-containing quadruple therapy (clarithromycin,lansoprazole, bismuth and amoxicillin) in H. pylori eradication. It is hypothesized that berberine-containing quadruple therapy is non-inferior to clarithromycin-containing quadruple therapy. Patients with confirmed H. pylori positive status will be randomized to one of the treatments described above. At week 2 and 6 follow-up visits, a urea breath test(UBT) will be performed to confirm eradication.