"over the past 7 yrs. i&#039;ve been on every painkiller known to man. currently what works for me is fentanyl 25mg patches and norco 10/325mg for breakthrough pain. disabled due to severe back(lower) pain, both hips broke, right knee with osteoarthritis and my right achilles tendon was torn up by a 

dog. my combo allows me to function somewhat for up to about 4 hrs before pain level starts rising and i have to stop cause sometimes the pain gets so bad that the meds don&#039;t work. fentanyl is not for everyone but i would suggest to anyone dealing with severe chronic pain to try it.a patch last 3 days and i have no side effects from it. no constipation either.  i thank my lucky stars that my doc found this combo. i still have bad days but very few."