Vicky, my prep was a little different than yours. I had to take 2 dulcolax tablets at 10:00am, followed by the Miralax/64 oz Gatorade starting at 3:00pm, every 15 minutes. I found the Miralax prep much better than any other prep. (if there is such a thing, lol!
) The Miralax was PLENTY to clean me out! Good luck to you. Julie