pain
"I am currently on Opana ER, and tried the Nucynta ER to see if it would have any less side effects than those I had on the Opana (sweating was the absolute worst, and severe exhaustion, among others). I tried Nucynta ER for 4 days, and felt the best I have felt in years. While my dose needs to be increased a little, it made me feel so much better. I didn't have any of the negative side effects that I have on the Opana. On the Opana, I needed to nap throughout most of the afternoon because I was just that tired. On the Nucynta, I had energy throughout the entire day and just felt wonderful. I am excited to get on it permanently, and think it may be an awesome medication for me."