I am new to this medicine and haven't taken it yet.. I had to quit taking Oxycodone 10mg 3x a day because that wasn't helping my breakthrough pain at all!! But I am also on the Butrans patch, now beginning at 20mcg/hr, up from the 10mcg's I was on. Do you think this combination is okay, I have had 3 major surgeries on my right knee, and it has messed up both my knee and down my leg, now, my only problem is the breakthrough pain!!! Please ease my mind, I hope this MSir will help, and wonder if it is like getting an injection at the hospital??? Thank You!