Hanfangketui decoction has the functions of invigorating qi and blood, blocking collaterals by blood stasis, dispelling cold and dredging collaterals. This prescription comes from many years of clinical research and experiments, and is mainly used for treating restless legs and weakness. The main clinical manifestations are lower limb pain, tingling sensation or insect crawling sensation, which can't stop still. Clinically, it is often used to treat restless legs syndrome, early Parkinson's syndrome and other TCM syndromes, which belong to anemia, blood stasis blocking collaterals and liver and kidney deficiency.