The maintenance time of the effect of Yunke, or technetium [99Tc] methylenediphosphonate injection, in the treatment of rheumatoid arthritis varies from person to person and cannot be generalized. As a rheumatoid arthritis treatment drug, Technetium [99Tc] Methylene Bisphosphonate Injection has analgesic, anti-inflammatory, immunomodulatory, and bone-breaking repair effects, and is suitable for the treatment of autoimmune diseases such as rheumatoid arthritis and orthopedic disorders. Its therapeutic effect varies from person to person and its maintenance time also varies and cannot be generalized. The use of Technetium [99Tc] Methylene Diphosphonate Injection needs to be under the guidance of medical professionals. Adverse reactions such as rash, local redness and swelling of the injection site, phlebitis, and fatigue are occasionally seen. Allergies, low blood pressure, patients with severe hepatic and renal dysfunction, pregnant and lactating women are prohibited. Note that the product should be discontinued if discoloration or precipitation occurs. Use with caution in patients with cardiac insufficiency. It is recommended that patients with rheumatoid arthritis consult a doctor in time to avoid delaying their condition, and use Technetium [99Tc] Methylene Bisphosphonate Injection under the guidance of a doctor, and do not use the drug on your own.