Hi. What is the med? The reason I ask is that decades ago I was injured in the Military, and for a few years before surgery was done, I got something called a ganglion block... it was a long needle sent to the nerve area... it was not narcotic to my knowledge, but for about 3-4 hours after the procedure, I looked like I had a stroke. It was my left shoulder, and only my left facial side was affected for those 3-4 hours... than ok. Didn't mess with my head or bodily functions.... except my face....lol ( BUT just for 3-4 hours ) Granted it was not a pump...