First time I had a M.R.I.they only got me a fourth of the way in before I freaked and made them get me out, they scheadule another 2 days later and gave me a valium 20 minutes before. This one didn't bother me at all I slept through the whole thing :). The last one I had they did the same thing, no problems at all.It helps I guess that I have a very low tolerence to drugs , so it doesn't take much to knock me out, this is why my Doctor prescribe a low dosage vallium, I hope everything works out ok. mmm