No. However, oxycodone metabolizes into oxymorphone in the liver. There are separate oxymorphone preparations such as numorphan (injectable solution. not sure if they are around anymore) and opana...
No - though they both contain Oxycodone, Percocet is the brand name for a combination of Oxycodone and Acetaminophen (Tylenol). OxyContin is the brand name for a timed-release version of Oxycodone....