"i&#039;m a paraplegic. i was in a severe auto accident, broken vertebrae, most of my ribs were broken, broke my pelvis and ruptured my liver. after i was out of rehab, 4 months after the accident, i was put on pain meds. first i was put on 500mg vicodin and after about 6 months i began building up an immunity so they switched me to darvocet but they were worried about the amount i needed to take that the acetaminophen would damage my liver so after being on that for about 6 months or so they switched me to the darvon. it worked really well!!! in fact, i was able to back down on the amount i was taking because they were more effective than the darvocet. my insurance covered it but even if it hadn&#039;t it&#039;s much less than most other meds."