Fotaraline contains three dosage forms, namely emulsion, extended-release tablets, and enteric-coated tablets. The main ingredient of Fotarine is diclofenac sodium, which is a non-steroidal anti-inflammatory drug that produces analgesic, anti-inflammatory and antipyretic effects by inhibiting the synthesis of prostaglandins, and is mainly used to relieve acute episodes of rheumatoid arthritis, osteoarthritis, spondyloarthropathy, gouty arthritis, rheumatoid arthritis and other kinds of chronic arthritis, or persistent symptoms of joint swelling and pain. Diclofenac sodium can also be used for a variety of soft tissue rheumatic pain, such as shoulder pain, tenosynovitis, bursitis, myalgia, and post-exercise injury pain, etc. Diclofenac sodium can also be used for acute mild to moderate pain, such as pain after surgery, trauma, strain, primary dysmenorrhea, toothache, headache, etc.