Effects of Alcohol on the Pharmacokinetics of Blonanserin and N-Deethylated Blonanserin in Healthy Chinese Subjects

Journal of Clinical Psychopharmacology
Shuhua DengYu-Guan Wen


Blonanserin is a novel antipsychotic drug approved for the treatment of schizophrenia in East Asia. The main objective of the present study was to investigate the effect of alcohol on the pharmacokinetic properties of blonanserin and its metabolite N-deethyl blonanserin in healthy Chinese male subjects under fasting conditions. The study was designed as a randomized, open-label, crossover clinical investigation in 10 male volunteers, each of whom received 2 treatments under fasted conditions: treatment A, blonanserin (8 mg) with water, and treatment B, blonanserin (8 mg) with alcohol (1 mL/kg). The average values of areas under the curve (AUCs) and mean peak plasma concentrations (Cmax) were noticeably increased by alcohol consumption. In treatment A, average values of AUC0-24h, AUC0-∞, and Cmax were 3178 ng/h/L, 3879 ng/h/L, and 492 ng/L for blonanserin, and 1932 ng/h/L, 4208 ng/h/L, and 137 ng/L for N-deethylated blonanserin, respectively. In treatment B, AUC0-∞ and Cmax were both increased 2.4-fold for blonanserin and 1.4-fold and 1.7-fold, respectively, for N-deethylated blonanserin (P < 0.05). Compared with treatment A, clearance (Clz/F) of blonanserin and N-deethylated blonanserin decreased significantly (2.4-fold and 1.7...Continue Reading


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