"i have chronic thoracic back pain. i&#039;ve been through nerve blocks, acupuncture, physical therapy, 3 chiropracters, 2 orthopedic surgeons, 1 neurosurgeon, 2 pain doctor&#039;s. vicodin, percocet, kadian (very expensive). insurance refused to pay anymore finally switched to oxycodone. still have breakthrough pain with to much physical activity. "