Rheumatoid arthritis, osteoarthritis, and acute musculoskeletal injuries are among the disorders for which Reactin 100 SR Tablet is used to relieve pain, edema, stiffness, and joint pain. A class of medications known as nonsteroidal anti-inflammatory drugs (NSAIDs) includes Reactin 100 SR Tablet. It is used to temporarily reduce swelling, discomfort, and inflammation in disorders affecting the muscles and joints. It functions by preventing the brain's chemical messengers from alerting us to pain. In diseases like osteoarthritis and rheumatoid arthritis, it can help reduce discomfort. To receive the best benefit, take it exactly as directed. It can be risky to take more or longer than is necessary. Generally speaking, you should take the smallest effective dose for the shortest amount of time.