title: Excretion of codeine and morphine following ingestion of poppy seeds.
abstract: After the ingestion of three poppy-seed bagels, the following codeine and morphine concentrations were determined in the urine: 214 ng/mL codeine and 2797 ng/mL morphine at 3 h, and 16 ng/mL codeine and 676 ng/mL morphine at 22 h. This work indicates that a positive finding of codeine or morphine in the urine of an individual does not necessarily indicate heroin, morphine, or codeine use.
mesh_terms: D003061:Codeine / Q000652:urine*; D006801:Humans; D009020:Morphine / Q000652:urine*; D010207:Papaver / Q000032:analysis*; D010946:Plants, Medicinal / Q000032:analysis*; D012639:Seeds / Q000032:analysis*; D013997:Time Factors
chemical_list: D009020:Morphine; D003061:Codeine