僅用于工業應用或科學研究，不可用于人類或動物的臨床診斷或治療，非藥用.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 的雜質。Labetalol 是一種口服活性腎上腺素能受體阻斷活性分子，在 α 和 β 受體部位都是競爭性拮抗劑