ive been on subs 4 a while now, i take 8mg tablets 1.5 a day orally.one of my friends is also on subs 8mg he use to take them orally but now ive been afraid of what he's been doing with them.he used to take them oally but now he crushes them up and sniffs them,he also told me he had injected it.i am concerend about him booting them up [injecting] them.is that possible at all and will that harm him in any way.what could i possibly do to help him if it is possible to inject?