Tramadol was approved by the FDA for the treatment of moderate to moderately severe pain and discomfort. Tramadol in tablets, which are necessary to combat the pain. A large part of the doctors recommend their patients use the drug every 4 to 6 hours and, if necessary, fight the pain, but no more frequently than every 4 hours. Tramadol drug has a pair of the same side effects as morphine, there is a high risk of addiction. Tramadol should not be used by people from abusing alcohol or taking drugs. tramadol may cause the following side effects: migraine headaches, drowsiness, nausea, abdominal pain or vomiting.