It's all Chinese herbal medicine! The function of acanthopanax bark is mainly to dispel wind and remove dampness, strengthen bones and muscles, promote blood circulation and remove blood stasis. Treat arthralgia due to wind-cold-dampness, muscle spasm, lumbago, impotence, limp feet, edema, beriberi, sores, gangrene, toxic swelling, and traumatic injury. The main functions of Cortex Periplocae are: expelling wind and removing dampness, strengthening bones and muscles. It can be used for treating arthralgia due to wind-cold-dampness, soreness of waist and knees, palpitation, shortness of breath, and edema of lower limbs. Its main functions are: invigorating qi and spleen, tonifying kidney and calming nerves. Used for spleen and kidney yang deficiency, physical weakness, loss of appetite, soreness of waist and knees. Although the functions of Cortex Acanthopanacis and Cortex Periplocae are very similar, they cannot replace each other because Cortex Periplocae is toxic. If taken in excess or for a long time, it will lead to poisoning, paralysis and cardiotoxicity.