【Lidocaine(英译:利多卡因) is a local anesthetic and antiarrhythmic drug. It is a derivative of cocaine, but it has no hallucinogenic and addictive components of cocaine. Lidocaine hydrochloride is a white crystalline powder, which is very slightly dissolved in water and has the same toxicity as procaine, but the local anesthesia effect is strong and lasting, with good surface penetration. It can be injected or used as surface anesthesia. Lidocaine is a very good local anesthetic. It usually takes effect after one to three minutes, and the effect lasts for one to three hours.(英译:利多卡因是局部麻醉及抗心律失常药,它是可卡因的一种衍生物,但没有可卡因产生幻觉和上瘾的成分。 利多卡因其盐酸盐为白色结晶性粉末,在水中极微溶解,毒力和普鲁卡因相当,但局部麻醉效果较强而持久,有良好的表面穿透力,可注射也可作表面麻醉。 利多卡因是非常好的局部麻醉剂,一般施用一到三分钟后即生效,效果维持一到三小时。)】