Arthritis Medicine Actually, It is not a single disease; and an informal way of referring to joint pain or joint disease. There are more than 100 different types of arthritis and related conditions. Common arthritis joint symptoms include swelling, pain, stiffness and decreased range of motion. Symptoms may come and go. They can be mild, moderate or severe. how to treat arthritis, best medicine for arthritis, arthritis meds at alldaygeneric