Usually, by getting the prescription filled.
There's some pretty dangerous stuff you can get a scrip for.
Taking a scrip according to the doctor's orders should not be at addiction levels. Is that not the case? Isn't the physician majorly culpable here? IF the scrip says take "as needed for pain" & they run out doesn't the doctor need to do a close evaluation to see if the pills actually did what they were supposed to do?
Forgive my ignorance here.