Dilaudid medicines help relieve moderate to severe pain in our body. Dilaudid is also known as Hydromorphone. It belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain. Dilaudid is factory-made by Abbott Laboratories an associate degree opioid pain drug. Dilaudid tablets may contain traces of sodium metabisulfite. Hydromorphone hydrochloride is a pure opioid agonist with the principal therapeutic activity of analgesia. Dilaudid pills are available in 2mg, 4mg, and 8mg. It is a drug so, we should store Dilaudid in a safe place so that no one else can take it accidentally.