Abstract：
:Diphenhydramine is one of the first effective antihistamine agents to have been discovered. The compound is also used for its sedative and antiemetic effects. The first case involving repetitive sedation linked to the use of diphenhydramine as a drug-facilitated crime and subsequent impairment of a 9-year-old female victim is reported. Due to the long delay between the alleged crime and clinical examination, collection of blood or urine was of little value. Hence, the laboratory developed an original approach based on hair testing by LC-MS/MS. A single strand of hair from the victim was sampled about 7 weeks after the last suspected administration and was cut into small segments. After cutting into small pieces, about 20 mg of hair per segment was incubated overnight in a phosphate buffer (pH 8.4). The aqueous phase was extracted with 5 ml of a mixture of methylene chloride/diethyl ether (80/20), in presence of diazepam-d5, used as internal standard (IS). The hair extract was separated on an XTerra MS C18 column using a gradient of acetonitrile and formate buffer. Detection was based on two daughter ions: transitions m/z 256.2-152.1 and 167.1 and m/z 289.9-154.0 for diphenhydramine and the IS, respectively. In the hair of the child, diphenhydramine was detected at concentrations in the range 33-39 pg/mg, depending on the segment.
journal_name
Forensic Sci Intjournal_title
Forensic science internationalauthors
Kintz P,Evans J,Villain M,Salquebre G,Cirimele Vdoi
10.1016/j.forsciint.2006.12.006subject
Has Abstractpub_date
2007-12-20 00:00:00pages
171-4issue
2-3eissn
0379-0738issn
1872-6283pii
S0379-0738(06)00699-2journal_volume
173pub_type
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