title: Omeprazole: an exploration of its reported genotoxicity.
abstract: Because of its reported ability to induce unscheduled DNA synthesis in the gastric mucosa, the safety of omeprazole, a potentially clinically useful anti-ulcer drug, has been the subject of debate. We have undertaken a detailed computer-based study of structural basis of the putative mutagenicity, genotoxicity and carcinogenicity in rodents of omeprazole and of its sulphenimide, and we conclude that omeprazole is a potential 'genotoxic' carcinogen. The analysis is consistent with the possibility that these activities are associated with the unstable sulphenimide metabolite.
authors.affiliation: Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, PA 15261.
authors.forename: H S
authors.initials: HS
authors.lastname: Rosenkranz
authors.forename: G
authors.initials: G
authors.lastname: Klopman
mesh_terms: D000818:Animals; D015197:Carcinogenicity Tests; D002273:Carcinogens / Q000737:chemistry / Q000633:toxicity*; D016208:Databases, Factual; D009152:Mutagenicity Tests; D009153:Mutagens / Q000737:chemistry / Q000633:toxicity*; D009853:Omeprazole / Q000031:analogs & derivatives* / Q000737:chemistry / Q000633:toxicity*; D012377:Rodentia; D012984:Software
chemical_list: D002273:Carcinogens; D009153:Mutagens; C055084:omeprazole cyclic sulfenamide; D009853:Omeprazole