Hydromorphone Hydrochloride is a widely used drug for managing pain. It is important to know the synonyms for this medication in order to avoid confusion among healthcare providers and patients. Some of the synonyms include Dilaudid, Exalgo, Palladone, and HydromorphContin. Dilaudid is a brand name hydromorphone hydrochloride medication that comes in both tablet and liquid form. Exalgo is a once-daily pain reliever that contains extended-release hydromorphone hydrochloride. Palladone is another brand of hydromorphone hydrochloride that is available in capsule form. Finally, HydromorphContin is a sustained-release version of hydromorphone hydrochloride that is taken twice daily. These synonyms are helpful to know in order to communicate effectively about this medication.