"my pain management dr prescribed me this for my knee pain, which is excruciating. i have no cartilage in both knees. this medication allows me to live my life in a normal way. i dance zumba everyday as well as do other cardio classes to stay fit. i never take more than what my doctor prescribes. i&#039;ve been taking it for two years and it&#039;s a godsend for me. i&#039;ve never had any side effects. i never drink alcohol and i watch my diet very closely. i rest well. drink lots of water. opana is a great medication. of course, always do what your doctor says and take them exactly how they were prescribed."