I only problem I had was a reaction to the anesthetic. I was out of it so much more than the average person, and for longer. This may have been a drug-combination side effect of some sort. The doctor and the pharmacy were stumped. But after it wore off in about two days, I was fine.

Definitely make sure the gastroenterologist and his/her anesthesiologist are aware of everything you are taking. Give this information well ahead of time.

Good luck

Mike