Dilaudid 2 mg is a medication that contains hydromorphone, which is a strong opioid pain reliever. It's typically used for managing moderate to severe pain, especially when other pain medications just aren't cutting it. This lower dose provides effective pain relief while posing a lower risk than higher doses, making it a good option for patients who are new to opioids or just starting their treatment. It works by changing how the brain and nervous system perceive pain.