Yeah.. that doesn't sound good. At least if anything does happen you will know why.. you could get ink poisoning from that, or something else! So I would definitely keep a close eye on the spot where you IVed, or injection site if you will... and your body in general.. And definitely avoid using can bottoms with ink on them .. or at all if possible in the future.. I never have used them, just spoons for me, and they have never given me any problems, just so long as they are clean spoons.. I wash my spoon thoroughly before prepping anything in it too! Every time! Very important, not to shoot anything but the intended solution of whatever drug it maybe, mixed with water, well filtered! Keep it clean man, IVing drugs is no joke.. you can fuck your body up bad or even worse... die with things like that.. shooting ink.. Although, I know I would be fucking pissed if I had prepped a shot of coke, since I have never done meth, just plenty of coke, and other street drugs/opiates and opiod pharms, I would probably not want to just throw it away.. and knowing me it would be a huge shot too.. which would piss me off even more having to waste all that money.. but still being the hypochondriac I am, I would toss it! And then be fucking livid..