Drugs such as chondroitin are useful. These medications are indicated for patients with osteoarthritis, or damage to joint cartilage. The main pharmacological effect of these drugs is to relieve the clinical symptoms caused by cartilage destruction by promoting the formation of cartilage matrix. However, because of the slow onset of action of these drugs, some patients do not experience any relief in the early stages of taking them. When treating the above mentioned related disorders, the first step is to use conventional treatment, such as asking the patient to reduce the use of the joint and to treat it with anti-inflammatory, anti-swelling and pain-relieving drugs. At this point, slow-acting medications such as chondroitin sulfate, glucosamine sulfate, and diclofenac can be started. Through the continued use of this series of slow-acting drugs, better results can be obtained at a later stage. For example, most patients will experience significant symptom relief after taking these drugs for about four weeks. If the patient’s symptoms are not significantly relieved or continue to worsen while taking these drugs, he or she must return to the orthopedic department in a timely manner to review and adjust the treatment plan.