Antithyroid drugs may influ-ence the efficacy of 131I,the possible mechanism might be that antithyroid drugs change the effective half-time and(or) uptake of 131I.

• 抗甲状腺药物影响131I疗效的机理可能在于改变了131I的有效半衰期和(或)甲状腺对131I的摄取率。