Hydromorphone is an opioid pain medication. An opioid is sometimes called a narcotic.

Dilaudid 2mg is used to treat moderate to severe pain.

The extended-release form of this medicine is for the around-the-clock treatment of moderate to severe pain. This form of Dilaudid 2mg is not for use on an as-needed basis for pain.

Hydromorphone may also be used for purposes not listed in this medication guide.