A prescription medication called hydrocodone is used to treat moderate to severe pain. Since it binds to opioid receptors in the brain and spinal cord, it blocks pain signals and relieves them. This makes it an opioid analgesic. Hydrocodone is frequently recommended for ailments like injuries, arthritis, and back discomfort. To increase its ability to relieve pain, it is frequently taken with acetaminophen or ibuprofen.