Tramadol 100mg is a synthetic opioid analgesic medication used to treat moderate to severe pain. It functions by binding to the mu-opioid receptors in the brain and spinal cord, inhibiting the transmission of pain signals throughout the nervous system. Unlike other opioids, tramadol also acts as a serotonin and norepinephrine reuptake inhibitor, providing additional pain relief through its effects on these neurotransmitters. Tramadol is typically prescribed in oral tablets or capsules and can be taken with or without food. However, it carries a risk of dependence and abuse, as well as potential side effects such as nausea, constipation, dizziness, and drowsiness. Therefore, it should only be used under close supervision by healthcare professionals and at the lowest effective dose for the shortest duration possible.