Given 2 per 6 hours, roughly ends up being 180 pills per month. That’s not a crazy amount for someone taking it for that long. Sometimes it’s prescribed every 4 hours, which ends up being about 248 pills per month. I would be dead, but with how the body works, that’s fairly reasonable usage.
The problem looks like the shopping and how rapidly she increased her dose, which could still just be how it was prescribed.
Sincerely,
Someone who once had chronic pain but didn’t want and never took opioids for it.