I do not think that my first choice after an Accident would be to jump back to the substance I was trying to get Off when I had the accident??
I would go to my clinic and tell the truth, ask for a replacement, and be Much more careful!!
Just a thought.
Methadone would be the best bet to look for some how some way First, then maybe codine, but Fentanyl??? wow, a Bazooka to kill a fly, yes a very anoing and painful fly!!