Hydromorphone (Dilaudid®) is marketed in tablets (2, 4, and 8 mg), rectal Suppositories, oral solutions, and injectable formulations. All products are in Schedule II of the CSA. Its analgesic potency is from two to eight times that of morphine, but it is shorter acting and produces more sedation than morphine. Much sought after by narcotic addicts, hydromorphone is usually obtained by the abuser through fraudulent prescriptions or theft. The tablets are often dissolved and injected as a substitute for heroin.
Source: DEA