"i have been happy with nucynta. i have been using it for almost a year. i used hydrocodone/lortab for almost 8 years &amp; oxycodone/percocet for about 4 months. the oxycodone made me feel awful. always tired and stomach issues. i was fine on hydrocodone but i unfortunately built a tolerance after 8 years. i always avoided taking maximum dose but it got to a point where even the max dose wasn&#039;t helping and i was very concerned about the tylenol mix on my liver. i do take milk thistle to try to repair and avoid liver damage. i have had drug addictions in my life, but never to opiates. i always have been very careful with my prescriptions not to take more than prescribed no matter how much the pain. i like that nucynta feels very mild on the body."