A Polydrug Intoxication Involving Methoxetamine in a Drugs and Driving Case

Methoxetamine ((RS)2-(3-methoxyphenyl)-2-(ethylamino)cyclohexanone)) is becoming a drug of interest among practitioners of forensic toxicology. In this case report, we describe the case background, standard field sobriety tests, sampling, and analysis of this drug in a whole blood sample as well as screening methods and analysis from a driver operating under the influence of intoxicating substances. Methoxetamine was isolated from the blood sample using mixed mode solid phase extraction. After elution and evaporation, the residue was dissolved in mobile phase (consisting of acetonitrile and aqueous formic acid) for analysis by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatography-mass spectrometry (GC-MS). The case sample was found to contain clonazepam, 7-aminoclonazepam, carboxy-THC, Ddphenhydramine, and MDMA. The case sample was found to contain 10ng/mL of the drug (methoxetamine) in whole blood. The results of this drug analysis and previous analyses are discussed in terms of this driver operating under the influence of drugs.