Order 2mg Dilaudid, a strong opioid analgesic, is intended for treating moderate to severe pain. This medication, which is generically known as hydromorphone, is often more effective than various other pain relief alternatives, such as oxycodone, making it a top choice for patients in need of quick and effective pain management. Dilaudid functions by attaching to certain receptors in the brain, changing how pain is perceived and offering relief that can persist for several hours.