Lately, whenever my buddy does a shot he leaves a little leftover and keeps it in a rig in case he gets sick and needs it later. I thought I remembered hearing that heroin, once dissolved in water breaks down into other stuff (codeine?) after a few days? Is that right? So can you keep some in an outfit and IV it say a week later? 2 weeks later? Or is it gonna be a big codeine shot and make you have a killer reaction? Or some other crappy thing?