@gregda These medications are not supposed to become addictive because they do not enter the general body circulation, unlike oral meds. They tend to remain in the intrathecal space until they are removed. FYI, I have not gotten pain relief from my pain pump yet. Still having it adjusted upward. I had one day about two months ago in which all my pain from buttocks down to tip of my toes disappeared. 100% gone. But, as you said, my body may have become used to it to a degree since I have had it for over two and a half years.