卡马西平治疗精神运动性癫痫、三叉神经痛、精神病人冲动行为和情感性精神病很有效。卡马西平引起的癫痫和三叉神经痛病人的低钠血症很常见,利用这一副作用可治疗尿崩症,和锂盐合用可预防锂引起的肾性尿崩症。本文研究的是卡马西平引起的情感性精神病人的低钠血症。方法:病人总数20例,男女各半。治疗前每例病人测定3次基础血钠、钾和氯化物,每间隔一周测定一次。正常值钠135～145meq/L;钾3.5～5 meq/L;氯化物98～108 Carbamazepine is very effective in the treatment of psychomotor epilepsy, trigeminal neuralgia, mental patient impulsivity and emotional psychosis. Carbamazepine-induced epilepsy and trigeminal neuralgia are common in patients with hyponatremia, the use of this side effect can be used to treat diabetes insipidus, and lithium salt can prevent lithium-induced renal diabetes insipidus. This article is about carbamazepine-induced hyponatremia in sentimental patients. Methods: The total number of patients 20 cases, half male and half female. Each patient before treatment measured 3 times the basal sodium, potassium and chloride, measured once every other week. Normal sodium 135 ~ 145meq / L; potassium 3.5 ~ 5 meq / L; chloride 98 ~ 108