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2008 | 3 | 3 | 327-331

Article title

Detection and identification of atypical quetiapine metabolite in urine


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Quetiapine fumarate (Seroquel®) is an atypical antipsychotic dibenzothiazepine derivative. Due to its extensive hepatic metabolism and low level of unchanged excretion (< 1%) the routine toxicological drug-screening analyses of urine often leads to false negative results. In the present study, we report that a newly identified metabolite of quetiapine, N-desalkylquetiapine, can be used as an indicative marker of quetiapine-intake in urine using common GC-MS screening procedure. The structure of the mentioned metabolite was solved from the mass-spectrum obtained and the quetiapine presence was proved by consequent HPLC plasma analysis.










Physical description


1 - 9 - 2008
10 - 7 - 2008


  • Clinic of Emergency Toxicology and Allergology, Military Medical Academy, 3 G. Sofiiski Str, 1603, Sofia, Bulgaria
  • Laboratory of Bioinorganic and Bioanalytical Chemistry, Department of Analytical Chemistry, Faculty of Chemistry, Sofia University, 1 J. Bourchier Ave., 1164, Sofia, Bulgaria


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