I know little about IV or IM but I do know that if you try to snort a crushed up ER pill, your nose is going to "gel up" and be quite unpleasant for the next day. Your nose will get very clogged. There is a way to remove the gel somehow, I saw a post about it on another forum years ago, when they started making oxy and other painkillers with gel formulas. I do not know where it was or how to do it though, I wouldn't snort it. Than again, IVing something with the gel agent is good either.
drugbuyersforum.org is a scam.