Document Classification

Section Type: METHODS

Text: A total of 360 H. pylori-positive patients suffering from dyspepsia and aging 24-79 years with a median age of 42 years were enrolled in the study and randomly allocated into the following three groups : group A (n = 120) received a standard 1-wk triple therapy (20 mg omeprazole b. i. d., 1000 mg amoxicillin b. i. d., 500 mg clarithromycin b. i. d.) ; group B (n = 120) received a 10-d standard quadruple therapy (20 mg omeprazole b. i. d., 1000 mg amoxicillin b. i. d., 240 mg colloidal bismuth subcitrate b. i. d., and 500 mg metronidazole b. i. d.) ; group C (n = 120) received the new protocol, i. e. 375 mg sultamicillin (225 mg ampicillin plus 150 mg sulbactam) b. i. d. (before breakfast and dinner), instead of amoxicillin in the standard quadruple therapy for the same duration.