Tramadol is among the band of medicines called opioid analgesics (narcotics). It acts in the nervous system (CNS) to ease pain. When tramadol is employed for a long period, it might become habit-forming (causing mental or physical dependence). Mental dependence (addiction) is not likely to happen when narcotics are used for this purpose. Physical dependence may result in unwanted effects once you suddenly stop taking the medicine. Since this prescription medication is only used for short-term relief of pain, mental and physical dependence will probably not occur.