Rheumatoid arthritis (RA) is an autoimmune disease in which the immune system mistakes the lining of the joints as a foreign body and thus attacks as well as damages it, thereby resulting in inflammation and pain. This condition mainly affects the distal joints symmetrically such as wrists, hands or knees. Nearly one percent of the Americans live with this condition. The main signs of RA are pain, stiffness, and swelling. Tramadol Buy Online if you want to get the drug at your convenience without searching in the local medical store.