Dilaudid is one of the brand names of the drug hydromorphone, an extremely potent centrally-acting analgesic drug. It is an opiod, derived from morphine. Diaulid is used to relieve moderate to severe pain, and frequently prescribed for chronic pain conditions and to ease the stress of severe, painful dry coughing. It is prescribed either in liquid for (generally for dry cough), 1-8 milligram tablets or as an injection, and is considered a Schedule II controlled substance in the United States, due to its highly addictive properties.
After taking Dilaudid, users can expect to feel the effects of the medication within 30 minutes to an hour. If the drug is administered intravenously, its efficacy wears off within 2.3 hours. Taken orally, the drug's effects dissipate within 4.1 hours.
Whether or not someone will test positive for Dilaudid depends on the dosage, method of administration, time that has elapsed since the last dose, and the relative size of the person being tested. Detectable amounts of Dilaudid are present in the blood for up to 24 hours after taking the drug. In a test of a hair sample, traces can be detected between 3 to 6 months after the last dose. In a urine or saliva test, trace amounts are present between 2-3 days after taking the drug.