One of my many jobs was as a narcotics technician in huge pharmacy.
Any time we dropped a pill, we had to log it and we had old bottles to store the “contaminated” ones in. Those bottles got pretty full, because nobody knew what to do with them beyond that. Not that I really think that’s what you’ve got there.
Possession of that much of a (probably stolen) class II narcotic is a felony for sure. Destroy it if you haven’t already and ask for this thread to be deleted.
Just my 2 cents.