广肌松系由防己科植物粉背轮环藤 Cyclea hypoglauca(Schauer)Diels 的根及根茎中提取的总生物碱。实验表明,广肌松有肌松作用,其作用类型为非去极化型。在有效剂量下可致狗的呼吸抑制、血压下降,但可自行恢复;如加大剂量时必须同时给予人工呼吸可使血压下降不明显。本药有效量与呼吸麻痹量范围较窄,提示在临床应用时必须在有经验的麻醉师严密观察呼吸或插管下进行。 Glucosinolate is a total alkaloid extracted from the roots and rhizomes of the hardwood family Cyclea hypoglauca (Schauer) Diels. Experiments show that broad muscle relaxants play a role, the type of non-depolarization. In effective doses can cause dog respiratory depression, blood pressure, but can be self-healing; such as increasing the dose must be given at the same time artificial respiration can make blood pressure drop is not obvious. The effective amount of the drug and respiratory paralysis range is narrow, suggesting that in clinical applications must be closely under the observation of anesthesiologists or intubation.