Hello: The "Pingjia Decoction" you mentioned comes from The Complete Collection of Famous Prescriptions of Traditional Chinese Medicine, and consists of 30g seaweed, 3g gentian, 30g raw oyster, 30g mother-of-pearl, 9g Fritillaria, 30g selfheal, 3g scutellaria baicalensis, 3g raw licorice, 9g red peony root, 0/5g clam powder and 0/2g plantain seed. Has the effects of clearing liver-fire, removing blood stasis, regulating qi and resolving hard mass. Mainly suitable for hyperthyroidism.