I did the Miralax prep this, and it was inadequate enough that the gastroenterologist gave me the impression that she thought I was lying about having done it as prescribed. We're going to have to do another one next year, and she says she wants to admit me for the prep.

I have finally, 3 months after I needed it, managed to fill the prescription for the Golytely prep. I figured I could stick it on the shelf and have it.