The semi-synthetic opioid hydrocodone, also called dihydrocodeinone, is made from codeine, one of the opioid alkaloids present in opium poppies. Oral usage of this narcotic analgesic relieves moderate to severe pain. According to one study that compared the potencies of hydrocodone and oxycodone, 50% more hydrocodone was required to produce the same level of miosis. According to the researchers' interpretation, oxycodone is roughly 50% more powerful than hydrocodone.