I have had procedures with citrimag and gastrofin without problems although some discomfort.The poly glycol stuff though caused me to vomit with the first mouthful with an hour of dry retching to follow.In the waiting room however there was one individual happily swigging it down, although he did look as though he could wrestle a crocodile with one arm while biting the head off a bear.
That procedure was cancelled, i had to wait a couple of hours for discharge while my heart rate went back to normal.
First procedure with entonox was agony and also cancelled.
Biggest problem i had was with no one to take me home.Although there are various volounteer driver options available, they have to be able to stay with you for 24 hours or so to care so they are not considered suitable by the hospital (basically a taxi service).
Fenatanyl + midozlam.I think the purpose of the midzolam is to make you forget, i did not, and it hurt.I believe that in Norway and one of the London teaching hospitals the sedation part is omitted and just the painkiller is given. Not being the nervous type (ignore my sig) i would have preferred this option as it avoids the need for a chaperone (i was told but not sure of this).
Someone here mentioned that general anathsesia could be had, despite asking this was not an available option, i suspect because it requires bed space, i am awaiting a different procedure elswhere for another couple of biopsies for the same reason (no chaperone).I now have to wait for another investigation as i know there is something that needs to be removed.
From reading about, everyone is different and has different experiences.However having known someone lost to bowel cancer i would suggest it is much better to bite the bullet and get it done asap.Until you have it done there is no way of knowing if yours is going to me an easy or difficult one.
Get all the drugs you can and see how it goes.Shout load enough and they will stop the procedure.