title: Effects of diphenhydramine on immunoassays of phencyclidine in urine.
authors.forename: B S
authors.initials: BS
authors.lastname: Levine
authors.forename: M L
authors.initials: ML
authors.lastname: Smith
mesh_terms: D004155:Diphenhydramine / Q000652:urine*; D005189:False Positive Reactions; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D007118:Immunoassay; D010622:Phencyclidine / Q000652:urine*; D011863:Radioimmunoassay; D019966:Substance-Related Disorders / Q000652:urine*
chemical_list: D004155:Diphenhydramine; D010622:Phencyclidine