Hydromorphone, a more common synonym for dihydromorphinone (not to be confused by dihydromorphine, which is a different derivative of the morphine family), commonly a hydrochloride (brand names Palladone, Dilaudid, and numerous others). It's a semi-synthetic opioid.
Knoll introduced it to the mass market in 1926 under the brand name Dilaudid, indicating its derivation and degree of similarity to morphine (by way of laudanum). The brand name Dilaudid is more widely known than the generic term hydromorphone, and because of this, Dilaudid is often used generically to mean any form of hydromorphone.
Dosage
Oral
Light
1-2 mg
Common
3-4mg
Strong
4-8mg+
Insufflated
Light
1-2mg
Common
3-4mg
Strong
4-8mg+
Intravenous
Light
1-2mg
Common
2-4mg
Strong
4-6mg+
Duration
Oral
Ora
Onset 20-40 minutes.
Total: 3-4 hours.
Insufflated
Insufflated
Onset: 5-10 minutes.
Total: 2-3 hours.
Intravenous
Intravenous
Onset Instant
Total: 1-2 hours.
Effects
Positive
Euphoria
Pain relief
Neutral
Pupil Constriction
Itching
Sedation
Negative
Drowsiness
CNS depression
Dizziness
Nausea
Vomiting
Constipation
Sweating
Legal status
United States: Illegal to buy, sell, and possess without a prescription Schedule II