Tapentadol is a prescription medication primarily used to treat moderate to severe pain. It is classified as an opioid analgesic, meaning it works by binding to specific receptors in the brain and spinal cord to reduce the perception of pain. Tapentadol is unique because it also inhibits the reuptake of norepinephrine, which enhances its pain-relieving effects. This dual mechanism makes it effective for various pain conditions, including post-operative pain and chronic pain. While it is generally well-tolerated, potential side effects include dizziness, nausea, and constipation. Due to its opioid nature, there is a risk of dependence and misuse, so it should be used under strict medical supervision.