Function means efficacy. Rhizoma Ligusticum Xiangxiang Tongxin Pills has the efficacy of invigorating blood, expelling phlegm, warming and circulating the veins with aromatic and pungent medicines, and treating thoracic paralysis (stuffy pain in the chest) caused by obstruction of phlegm and stagnation of the veins. Rhizoma Ligustici Xiangxiong Tongxin Pill is a proprietary Chinese medicine, which is composed of Rhizoma Ligustici Chuanxiong, Chebulin, Salviae Miltiorrhizae and Nutmeg, etc. It has the efficacy of invigorating blood circulation, dispelling phlegm, and warming and circulating the veins with its aromatic and pungent formula. It can be used for the treatment of chest paralysis caused by phlegm and blood stasis obstruction, with symptoms such as chest tightness, chest pain, palpitation (accelerated heartbeat, often accompanied by panic), shortness of breath, and body fatigue. The adverse effects of this product are not clear at present. Note that this product is prohibited for those who are allergic to this product, allergy, pregnant women should not take, athletes should be cautious. Drug interactions may occur if this product is used concurrently with other drugs, please consult your physician or pharmacist for details. If you need to use this product, should be under the guidance of a physician, do not take on your own, so as not to delay the condition.