Elderly people who have leg pain and knee pain can take the following types of drugs: First, if the knee pain and calf pain are caused by knee trauma, they usually need to take oral Chinese medicine of the class of meridians and activators, such as Cao Wu Jia Su Tablet, Palsy Capsules, Hu Li San Capsules and Pan Long Qi Tablets, etc. Such drugs can eliminate the swelling of the joints and legs, promote blood circulation and reduce pain symptoms, and need to be taken for 2- Second, if the leg pain and knee pain are caused by degenerative osteoarthritis, oral non-steroidal anti-inflammatory drugs, such as loxoprofen sodium, celecoxib, Acomplia, etc., which can inhibit prostaglandin synthesis, make the inflammatory response of the joint subside, and reduce joint pain and leg pain. In addition to oral medications, elderly patients need to limit their activity level, rest appropriately, and work with leg muscle exercises.