Document Classification

Section Type: METHODS

Text: Two hundred and twenty-one patients who presented endoscopically proven duodenal ulcers and a positive rapid urease test were randomized to receive either : (i) omeprazole 20 mg b. i. d., clarithromycin 250 mg b. i. d., bismuth subcitrate 240 mg b. i. d. and tetracycline 500 mg b. i. d (OCBT) for 2 weeks ; (ii) ranitidine 300 mg b. i. d., metronidazole 500 mg b. i. d, bismuth subcitrate 240 mg b. i. d. and tetracycline 500 mg b. i. d. (RMBT2) for 2 weeks ; or (iii) ranitidine 300 mg b. i. d., metronidazole 500 mg b. i. d, bismuth subcitrate 240 mg b. i. d. and tetracycline 500 mg b. i. d. (RMBT3) for 3 weeks.