I don't know if it was wise, Lady, but I went through my gallbladder surgery while on LDN.

I did retain a ton of fluids after the surgery, but I don't know if that had to do with the pain meds I was using after, the surgery itself, or something to do with LDN and codeine (anesthetic). The anesthesiologist didn't think there was a problem continuing with the LDN though, and we had a LONG meeting before the procedure.

I wouldn't even have considered dropping the LDN for colonoscopy, but I think that procedure is done differently in Canada then the US, or at least the way it was done here when I had it. They didn't give me anything for the first while, then drugged me with just a sedative of some sort (Valium/Ativan?) to finish the job. That was many yrs ago ... but they still don't knock us out here, I don't think.

Cherie