Both osthol and icariin can antagonize the inhibition of PTU on thyroid, and improve the recovery of thyroid hormone in the mice of hypothyroidism type kidney?yang insufficiency induced by PTU, showing the effects of reinforcing kidney?yang. ?

• Osthol和Icarin既能拮抗PTU的甲状腺抑制作用，预防“肾阳虚”证的出现，又能促进PTU所致甲减“肾阳虚”小鼠体内甲状腺激素水平的提高，具有补肾壮阳作用。