It's a painkiller. An opiate like Heroin only weaker. It's highly addictive and a suffering bastard you will be if you get hooked and stop taking them. My advice is experiment if you want but don't take it frequently or you willpay a heavy price in terems of withdrawl. Heroin, Methadone, Dilaudid, Demerol, Percocet, Vicodin and I think Morphine too are all opiates derived from the opium poppy plant and are highly addictive. Percocet and Vicodin are the weaker of them but there are plenty of people in rehab for those as well as the stronger ones. Be careful not to mix a death cocktail either, a "River Phoenix" as I call it. Thats where you drink, smoke, snort, and pop pills to the point that you feel wonderfully numb.................... right before you die.