Tramadol is a synthetic (man-made) pain reliever (analgesic). Researchers and doctors do not know the exact mechanism of action of tramadol, but it is similar to morphine. Like morphine, tramadol binds to receptors in the brain (narcotic or opioid receptors) that are important for transmitting the sensation of pain from throughout the body to the brain.
Like other narcotics used to treat pain, patients taking tramadol may abuse the drug and become addicted to it.
Tramadol is not a nonsteroidal anti-inflammatory drug (NSAID), therefore, it does not have the increased risk of stomach ulcers and internal bleeding that can occur with NSAIDs.