title: Cimetidine, ranitidine, and their mutagenic nitroso derivatives.
mesh_terms: D002927:Cimetidine / Q000031:analogs & derivatives / Q000378:metabolism*; D005663:Furans / Q000378:metabolism*; D006146:Guanidines / Q000378:metabolism*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D009153:Mutagens; D009573:Nitrites / Q000378:metabolism*; D009603:Nitroso Compounds / Q000378:metabolism*; D011899:Ranitidine
chemical_list: D005663:Furans; D006146:Guanidines; D009153:Mutagens; D009573:Nitrites; D009603:Nitroso Compounds; C019503:nitrosocimetidine; D002927:Cimetidine; D011899:Ranitidine