Tramadol belongs to a class of drugs called opioids (narcotic pain relievers). It works by blocking pain signals from... moreTramadol belongs to a class of drugs called opioids (narcotic pain relievers). It works by blocking pain signals from reaching the brain so that they can't cause feelings of distress or anxiety in people who use them on purpose, such as patients taking part in scientific studies or those recovering from surgery after surgery ends up being too much for their bodies to handle without receiving some sort of relief first - whether physical or emotional!