Tramadol 50 mg is an opioid analgesic (pain reliever) used to manage moderate to severe pain. It works by changing how your brain and nervous system perceive pain. Classified as a centrally acting synthetic opioid, Tramadol not only binds to pain receptors (mu-opioid receptors) but also enhances the effects of neurotransmitters like serotonin and norepinephrine to improve pain tolerance.