I take oral medication for my Type II diabetes, so although they tell me to not take it the morning of the procedure, I don't take it the evening or at bedtime either, because I don't want to take the chance of being hypoglycemic during that fasting period.
My prep had to be started at 6 p.m., and then 8 ozs. every half-hour until it was finished. For diabetics, they recommend Crystal Light to mix with the prep. The only flavor you can use is their lemonade mixture, because they tell you, no red liquid. I hate Lemonade. I've had many colonoscopies. This one was the worst. I think I had one or two cups of the stuff left, but felt so bloated that when I tried to drink anymore, I gagged, so stopped. I didn't start crapping until three hours later, and was still hitting the toilet at 2 a.m. I'd never had a problem with "accidents" before, but something told me to buy myself a package of Depends this time around. I'm glad I did, because as soon as I'd get back on the sofa, I'd have to get right back up, and I was glad I had those throwaways on, as I was hurrying to the bathroom down the hall. Went through quite a few of them that night. Hopefully that was my last colonoscopy and prep. I'm 74, and asked my doctor how many more times I have to do the prep, and he said we could probably do the screening tests from now on. I'll still have to get gastroscopies, but at least I won't have to do the prep.
I have Ulcerative Colitis, they removed a pre-cancerous polyp out of me two years ago. I was diagnosed in 1994, and I’m 67 now. I’ll be getting them for a while longer….