仅用于工业应用或科学研究,不可用于人类或动物的临床诊断或治疗,非药用.Labetalone hydrochloride is an impurity of Labetalol. Labetalol is an orally active adrenoceptor blocking agent which is a competitive antagonist at both alpha- and beta-adrenoceptor sites.Labetalone hydrochloride 是 Labetalol 的杂质。Labetalol 是一种口服活性肾上腺素能受体阻断活性分子,在 α 和 β 受体部位都是竞争性拮抗剂