I had versed with demerol for an endoscopy. they inserted a camera down my throat. one time, i was not given enough, and i remember how painful it was with my doctor repeatedly jamming the camera in my throat and saying "swallow. Swallow!"

I have refused the procedure since then. I think if they have to make you forget, then they are not taking enough steps to prevent the discomfort in the first place. -- E.J.