are you talking about ethanol alcohol or isopropyl alcohol?
shooting ethanol is a terrible idea. it instantly destroys veins and burns terribly, unless you are diluting 10 units in a 20ml solution
shooting isopropyl alcohol, even in tiny amounts, can kill you. I'm hoping the method you are speaking about is breaking down the new "abuse-proof" opana with the isopropyl and some other steps, then waiting for it all to evaporate before you shoot it
please be more specific and please FOR THE LOVE OF dOG be safe