"i am 54 years old. started having back problems in 1985. have endured 2 lower back surgeries, the latter being a spinal fusion. i&#039;ve been on kadian for about 3 1/2 years. prior to that i was on darvocet, oxycontin, and methodone, but had adverse reactions to all of them. when my doctor tried me on 20mg of kadian it wasn&#039;t strong enough. but i slowly elevated to 80mg and it&#039;s been better than anything i&#039;ve ever had."