A comparison of nizatidine and ranitidine in the maintenance treatment of duodenal ulcer. A randomized, double blind, multicentre, 2-year study.

Unlabelled: One hundred and eight patients with an endoscopically documented healed duodenal ulcer (DU) participated to a multicentre, randomized, double-blind, long-term study. The study was planned with the aim to compare the efficacy of nizatidine 150 mg with ranitidine 150 mg in preventing relapse during the 2 years following the DU healing. Fifty four patients were assigned to each treatment.