bowel preparation
"50 years old, 1st colonoscopy.  I scheduled an 8 am exam.
I suggestion you have a 11 am exam.
You take the 1st packets of A & B for MoviPrep (MP) around 6 pm that night. 
I suggest you drink about 12 to 16 ounces of water prior to drinking the MP, otherwise it makes you dizzy. Things will start happening between an half to 2 hours later.  I probably had 30 flushes of the toilet before I got to bed around 10:30 pm.   Had to wake up at 2:30 am for the 2nd batch.  Repeated above, but this time I drank it all in about 30 minutes with another 16 ounces of water just prior.  Your BM's will be all liquid, at least 40 flushes before I was finished.  The urine was bright yellow, like you took a B vitamin. Good stuff!"