Ark Gel 30 gm is a member of the "topical analgesic" (painkiller) class of drugs that is mostly used to treat joint pain, low back pain, muscle sprains, and sports injuries. Along with this, it also lessens joint and muscle pain and swelling caused by rheumatoid arthritis and osteoarthritis, two ailments that affect the joints. One or more joints may enlarge as a result of arthritis, which leads to pain and stiffness that get worse with time.Disclaimer:For more information contact your physician.