Massive intoxication involving unusual high concentration of amitriptyline.
Amitriptyline is a tricyclic antidepressant widely used in the treatment of depression. Antidepressant drugs are among the most commonly encountered causes of self-poisoning, as illustrated by several published cases in the literature. This investigation reports a case of massive amitriptyline intoxication, involving a 44-year old female found dead in bed. The presence of this tricyclic antidepressant was revealed by a routine screening procedure. The concentration was calculated by gas chromatography/ electron ionization-mass spectrometry in the selected ion monitoring mode after solid-phase extraction using proadifen as internal standard and was in the post-mortem whole blood sample 85.9 mug/mL. This value was much higher than the reported toxic values ever found in the literature, and may therefore have caused the victim's death. Nortriptyline was also detected in the toxic concentration range, as well as therapeutic levels of diazepam and nor-diazepam. Taking into account both the available circumstantial information and toxicological results, it is very likely that death was caused by self-poisoning. Human & Experimental Toxicology (2007) 26, 667-670.
Margalho
Cláudia
C
Instituto Nacional de Medicina Legal, Delegação de Coimbra, Largo da Sé Nova, 3000-213 Coimbra, Portugal. claudiamargalho@iol.pt
Barroso
Mário
M
Gallardo
Eugenia
E
Monsanto
Paula
P
Vieira
Duarte Nuno
DN
D000328:Adult; D000639:Amitriptyline / Q000097:blood / Q000506:poisoning*; D000929:Antidepressive Agents, Tricyclic / Q000097:blood / Q000506:poisoning*; D003863:Depression / Q000188:drug therapy*; D003975:Diazepam / Q000097:blood; D005260:Female; D053593:Forensic Toxicology / Q000379:methods; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D003708:Nordazepam / Q000097:blood; D009661:Nortriptyline / Q000097:blood; D021241:Spectrometry, Mass, Electrospray Ionization; D013405:Suicide
D000929:Antidepressive Agents, Tricyclic; D000639:Amitriptyline; D003708:Nordazepam; D009661:Nortriptyline; D003975:Diazepam