Pharmacological Research Division, Toxicological and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongwon-gun, 28159, Republic of Korea.
2 papers in the library · 13 citations · publishing 2019-2022
The synthetic psychoactive substance 25N-NBOMe, a phenethylamine, was metabolized in vitro using human liver microsomes. Fourteen metabolites (M1–M14) were identified through liquid chromatography-quadrupole time-of-flight mass spectrometry. The biotransformations included hydroxylation, O-demethylation, N-dealkylation, nitro reduction, dehydrogenation, and carbonylation. The hydroxyl metabolite was the most abundant after phase I metabolism. These findings offer potential biomarkers for detecting 25N-NBOMe ingestion.
Deschloroketamine (10 mg/kg) and diphenidine (10-60 mg/kg) produced increased locomotor activation and stereotypy similar to ketamine (10 mg/kg) in mice. Both substances increased preference for the drug-paired compartment in conditioned place preference testing, indicating rewarding effects. In self-administration tests, deschloroketamine (1 mg/kg/infusion) increased active lever presses and infusions, suggesting reinforcing effects, whereas diphenidine (1, 2 mg/kg/infusion) did not alter these measures. Both compounds increased dopamine levels in PC-12 cells. The data suggest deschloroketamine may have both rewarding and reinforcing effects, while diphenidine only induced rewarding effects.