大麻素是从大麻树和印度大麻树中分离出的特殊物质。药代动力学证实其作用是通过激活体内大麻受体而发生作用。随机对照试验确定大麻有镇痛作用,但不支持对晚期癌症厌食即恶病质综合征有疗效,系统评价已确定对放化疗诱发的恶心呕吐有效。临床上可见中枢神经和心血管不良反应,不 Cannabinoids are special substances isolated from the hemp tree and the hemp tree. The pharmacokinetics confirmed its effect by activating the cannabinoid receptor in vivo. Randomized controlled trials have determined that cannabis has analgesic effect but it does not support the efficacy of anorexia and cachexia syndrome in advanced cancer. Systematic evaluation has confirmed that it is effective for nausea and vomiting induced by radiotherapy and chemotherapy. Central nervous system and cardiovascular adverse reactions can be seen clinically.