This preparation also decreased serum T4 of euthyroid rats with a similar effect as Thiamazole.These restults showed that YXG has strong antithyroid effects.

• 它还可使正常大鼠血清T4值下降，其作用与他巴唑相似，说明该方剂有明显的抗甲状腺机能亢进作用。