动物:小鼠。药物:0.3%醋酸溶液,或0.05%酒石酸锑钾,0.02%苯醌饱和水溶液,4%氯化钠溶液,0.02%2‐苯‐1,4苯甲酰苯醌(含有5%酒精水溶液),0.00125%缓激肽。小鼠腹腔注射下述任一化学刺激物引起疼痛:0.3%醋酸溶液,0.2ml/只。注射后,动物产生扭体反应,如腹部内凹(呈蜂腰状)、躯干与后腿伸张、臀部高起等。