isnt it the Acetaminophen thats dangerous to shoot not the hydro ?
DONT DO IT !
but if you must
CWE your pills at least 2-3 times. youll lose about 20-25% of your dose doing this so aim high. ( if it take 50 mgs of oxy iv'ed to get you were you wanna be i would prep 70mgs of hydro )
after your shit has ben CWD'ed a few times pour the remaining liquid in a shallow glass baking dish and allow to evaporate overnigt
you should be left with a thin white residue all over the baking dish
scrape this up with a razor and shoot it cold.
DO NOT SHOOT LORTAB