IDK if i'd go iv with these either, i decided to stop the iso extract of all opana, I had some activis and I believe there might be a wax type filler that will not completely filter out when warm and thus ends up in your bloodstream...snorting them is quite satisfying though. I need to check the activis website to be sure of the fillers, so dont take my word as gospel but rather a safer alternative with a hint of intelligence. X) nomad