CsA cyclosporin dosage Course response blocking IL-2 secretion 3~6mg/kg/d 有效血药浓度(BCSH,2009) 成人:150μg/L~250μg/L 儿童:100μg/L~150μg/L Course 2~3years (if without side effects) response 70% ? CD4+ TC CsA block