Dilaudid is the brand name for hydromorphone, which is a potent opioid pain medication. It's used to treat severe pain and works by binding to opioid receptors in the brain and spinal cord to reduce pain perception. Because of its strength, hydromorphone is typically reserved for cases of intense pain, such as post-surgery or cancer-related pain. Like other opioids, Dilaudid carries a high risk of addiction and should be used under strict medical supervision and only as prescribed. It's important to be aware of its potential side effects and to follow your doctor's instructions carefully. Dilaudid in various dosages, including 2mg, 4mg, and 8mg.