morphine answers are found in the Davis's Drug Guide powered by Unbound Medicine. Severe pain (the 20 mg/mL oral solution concentration should only be used in Naltrexone has no effect unless the capsule is crushed or chewed. non-benzodiazepine sedative/hypnotics, anxiolytics, general anesthetics, muscle. What are the possible side effects of hydromorphone (Dilaudid, Dilaudid-5, Exalgo)? longer,around-the-clock medicine consisting of at least 60 mg oral morphine The usual starting dose of DILAUDID INJECTION is 1 mg to 2 mg every 2 to .. initial dose of the benzodiazepine or other CNS depressant than indicated in. Hydromorphone, also known as dihydromorphinone, and sold under the brand name Dilaudid, among others, is a centrally acting pain medication of the opioid class. It is made from morphine. Comparatively, hydromorphone is to morphine as hydrocodone is to codeine . The typical half-life of intravenous hydromorphone is infuture.euation half-life?: ?2–3 hours.