Hydrocodone 5-325 mg is a prescription medication that contains 5 mg of hydrocodone and 325 mg of acetaminophen. It is a pain reliever that is used to treat moderate to severe pain. Hydrocodone works by binding to pain receptors in the brain and spinal cord, while acetaminophen (also known as paracetamol) reduces fever and provides additional pain relief. This medication is classified as a narcotic, and it can be habit-forming if used for long periods of time. It should only be taken under the supervision of a healthcare provider and as prescribed.