鲁拉西酮-abs811045

一、产品概述

二、产品信息

Lurasidone is a new atypical antipsychotic in the benzoisothiazoles class of chemicals. Like most second-generation antipsychotics it is a full antagonist at dopamine D2 and serotonin 5-HT2A receptors, and is a partial agonist at 5-HT1A receptors. It has much greater affinity for 5-HT7 subtype receptors than other atypical antipsychotics. Lurasidone also has high affinity for the 5-HT1A subtype, α2c-adrenergic receptors and low affinity for α1-adrenergic receptors. It has minimal affinity for 5-HT2C receptors and negligible affinity for histamine H1 and muscarinic receptors.

Lurasidone is rapidly absorbed, reaching peak concentrations within 1.5–3 hours (tmax) after single and multiple oral doses. Once absorbed, it extensively distributes in tissues and rapidly enters the CNS. Lurasidone has high binding to human plasma albumin and alpha-1-glycoprotein (≥99%). Long-term treatment of schizophrenia with lurasidone has been shown to reduce the risk of relapse. The elimination half-life of lurasidone is about 20-40 h. Mean Cmax and area under the curve (AUC) for lurasidone were approximately threefold and twofold greater, respectively, in a comparison of administration with food v. fasting. Lurasidone absorption is independent of food fat content. Lurasidone is metabolised primarily via CYP3A4. In animal studies, lurasidone penetrated the placental barrier and distributed into the fetus, and was excreted in milk during lactation.

三、背景

四、制备和贮存

五、产品特点

六、注意事项