Don't fucking lick opana ER's, the coating isn't like OC's, when you lick then when you crush em up peices will have already gelled/gummed up and you won't get nice clean powdery lines.
You take a new razor blade or exacto knife and cut the coating off, I just stick the peices I cut off under my tongue for a bit then swallow, don't know if it does anything or not; but I aint leaving it sitting on the table lol. Once you gett good enough at it, and the pills are fresh(longer exposure to air moisture the more coating bonds with the pill so it doesn't peel off) you'll usually be able to cut the coating off without wasting any amount of pill to worry about.
And don't snort the coating either, that's stupid.