Good powder heroin, and also opium which I have only smoked a few times ,although not the strongest opiate it has a nice mellow high.But heroin is #1 by far. I used to chew up OC's in my mouth and wash them down with a Pepsi,so if i chewed up a 40mg OC i got the 40mg like it was 40mg of oxycodone by regular non time release way..tastes bad at first but I learned to like the taste,and also the new formulation does not apply to generic OC's like oxycodone extended release tablets for example made by a number of different companies.I think the new formulation only apllys to name brand OxyContin,since i'm sure they patented it,so generic companies can continue to make oxycodone extended release tablets that are like the old OC's more or less.