Another of Big Pharma's "dirty little secret" is their inadequate labeling of many habit forming substances... I know lots and lots of people who have had a hell of a time weaning themselves off various common antidepressants and other meds.

When my wife had shoulder surgery (painful as heck!) she was on opiod painkillers for a couple of months during the recovery phase. Fortunately... she was able to break the habit.