The invention relates to a pharmaceutical composition for treating Hashimoto's
thyroiditis and a preparation method thereof. The pharmaceutical composition is composed of
bupleurum, radix curcumae,
prunella vulgaris, rhizoma Dioscoreae Nipponicae, thunberg fritillary
bulb, radix scrophulariae, edible tulip,
astragalus, dark plum and other components, and can be made into granules, capsules, tablets or pills by the conventional pharmaceutical processes. The pharmaceutical composition has the effects of soothing liver-qi stagnation, reducing
phlegm, removing stasis, and
softening hardness to dissipate stagnation, and applies to patients with Hashimoto's
thyroiditis and
thyroid nodules. Clinical studies have shown that the pharmaceutical composition can significantly improve the symptoms of Hashimoto's
thyroiditis, reduce the
thyroid volume and isthmus thickness, and reduce the level of TgAb and TPOAb, and the total effective rate is 97.22%. In addition, for patients with
thyroid nodules, nodules can be significantly reduced or even disappeare, no significant adverse reactions are presented in the course of treatment. Experimental studies have shown that the pharmaceutical composition reduces the level of TgAb and TPOAb, and reduces
inflammatory infiltration and thyroid follicular damage.