Em. Witteman et al., SMOKING-HABITS AND THE ACQUISITION OF METRONIDAZOLE RESISTANCE IN PATIENTS WITH HELICOBACTER-PYLORI-RELATED GASTRITIS, Alimentary pharmacology & therapeutics, 7(6), 1993, pp. 683-687
Thirty-three dyspeptic patients with colonization of Helicobacter pylo
ri in the gastric antrum were treated with tripotassium dicitrate bism
uthate 120 mg q.d.s. for 28 days and metronidazole 250 mg q.d.s for 10
days starting on day 19. Five weeks after cessation of this treatment
regimen H. pylori was eradicated in 23 patients. In 8 of the remainin
g 10 patients, H. pylori had become resistant to metronidazole. In thi
s study resistance was significantly associated with smoking habits, b
ut not with age, bacterial load, gastritis score or alcohol consumptio
n.