yeah, you can find detailed info on it here if you search, there's a whole thread on it. Anyway, it's best to use a micron filter, but I don't, though I plan on investing in some soon. You just crush it up, and chop it into very fine powder, and add water. I believe it is 16mg/1mL (thats the maximum amount you can disolve in 1 mL). Like I said above, if your taking 8mg a day, you don't want to shoot nearly that much. 8mg/ day is equivalent to about 2.4 mg/day (if my math is correct). I equate like this: sublingual amount x .3 = I.V amount. However, since the duration is less time, you'll want to break your daily dosage up into a couple of shots. I usually shoot .2 mg about 4-5 times a day. From what I've seen and read, missing shots of suboxone or subutex can be really disastrous if you're not using a micron filter. I so far haven't had any problems with my health, but it does become pretty addicting, and you might not want to get into it, because it's going to be a lot harder to go back to taking it sublingually. The rush is really not anything to write home about, IMO, I just like having the instant effect and relief. Plus, I hate the taste of that shit!!