Document Classification

Section Type: METHODS

Text: In a randomized ; double-blind study, conducted in 19 hospitals, 105 H. pylori positive duodenal ulcer patients were healed and symptom-free following either omeprazole dual therapy (omeprazole 40 mg o. m. + amoxycillin 500 mg t. d. s., OA, eradication rate 46 %, n = 52) or omeprazole triple therapy (omeprazole 40 mg o. m. + amoxycillin 500 mg t. d. s. + metronidazole 400 mg t. d. s., OAM, eradication rate 92 %, n = 53) for 2 weeks, followed by 2 weeks of omeprazole 20 mg o. m. and a 12-month untreated follow-up period, after which time all patients were endoscoped.