i dont know were u got your comparison that 2 mg s of dilaudid is equivalent to 10 mg of percocet. Its is slightly more than a 5 mg percocet more in the range of 6 to 7 mg follow your chart fom there and figure 4 mg is slightly above 10 mg of percocet. Carfentanil or carfentanyl is a structural analog of the synthetic opioid analgesic fentanyl. Short acting and with fast onset it has, weight for weight, around hundred times stronger effects than fentanyl and thousands of times stronger than heroin. 5mg is a very low dose. But it is strong, oxycodone is about 40-50% stronger than morphine, and is 8 times more easily absorbed than morphine. R08. Discussion. The most appropriate drug for an opioid trial depends on the patient’s clinical profile and individual circumstances. The following tables have been prepared to assist prescribers in selecting the most appropriate opioid. mg for mg hydrocodone (vicodin, etc) is 6 times stronger the tramadol, oxycodone is about 18x, and like Dave said codeine is the same strength as trams mg/mg. Oxycodone is an opioid agonist and therefore has abuse potential and risk of fatal overdose from respiratory failure. Addiction may occur in patients who obtain oxycodone illicitly or in those appropriately prescribed the drug. Drugs users generally don’t know when their heroin is laced with fentanyl, so when they inject their usual quantity of heroin, they can inadvertently take a deadly dose of the substance. Marketed in the 1800s as a solution to morphine addiction, heroin ranges from twice as strong to five times as strong as morphine depending on the person and how it is used. About 1 in 5 adults suffer from moderate or severe chronic pain that is not caused by cancer. Some people with this type of pain are treated with opioids (typically with drugs like morphine, codeine, oxycodone, fentanyl, or buprenorphine, either as tablets or as patches placed on the skin). Medical uses Intravenous and intrathecal. Intravenous fentanyl is often used for anaesthesia and analgesia. During anaesthesia it is often used along with a hypnotic agent like propofol.