Hydrocodone is a powerful medication that is often prescribed to manage severe pain. It belongs to a class of drugs called opioid analgesics and is commonly used to treat conditions such as chronic pain, injury-related pain, and post-surgical pain. The most common forms of hydrocodone-acetaminophen preparations are 10/500 mg, 5/325 mg, 10/650 mg, 10/500 mg, and 10/325mg.