白屈菜(Chelidonium majus L)又名土黄连、牛金黄、牛金花、嗅花菜等,为罂粟科野生植物,含有多种生物碱。具有镇痛、解毒、利尿等作用,故可入药。正常药用剂量:4.5～9克(干草),作煎剂或浸膏剂;磷酸白屈菜碱0.1～0.2克,内服。但用量过大,可致中毒。我们曾遇到三例因食用过量导致中毒的患者,报告如下: Chelidonium majus L, also known as Coptis, cattle golden, Nigella, snake flower, is a wild plant Papaver somniferum, contains a variety of alkaloids. With analgesic, detoxification, diuretic and other effects, it can be used as medicine. Normal medicinal dose: 4.5 to 9 grams (hay), for decoction or extract; chelidonine 0.1 to 0.2 grams, orally. However, excessive dosage can cause poisoning. We have met three patients who were poisoned due to over-consumption, and reported the following: