Misssuezq, My GI did recommend the extra dose of miralax, but he wanted me to stop the Metamucil, too much fiber he said. Well, by that time my GI had lost interest in helping me. He was with Kaiser. I had to leave Kaiser 3/29 of this year, cuz i turned 65 and live out of their territory, so he is my ex-GI. So I'm on my own now. I a on Trulance, a cheaper version of Linzess still. So, I take what I need to take to not be constipated or both bowels potential for partial obstruction or blockage. I have found that when I drink the miralax over a short period of time, rather than chug it, it is better for me, same with the Metamucil gummies (I take 5). With the Metamucil powder you have to chug it or it gets too thick. I drink lots of water around the same time. Does the smaller dose work for you? Do you know the reason for your constipation? Mine is probably related to: total lack of energy to exercise, I use a pedal machine, two accidents in 2005, a redundant splenic flexure, and elevated calcium levels with HPTH. I am having 3 1/2 of the 4 glands and adenomas removed in about 3 weeks, I am praying that this will help immensely with several problems. My smooth muscles needed to push out the poop, seem completely dead. All that comes out of me is by explosive air pressure and diarrhea that I never know if it will be all liquid or have some sort of semi solids. I have been told by other people that I am dad wrong to use so much of both; I have had a few drs raise their eyebrows at it, but say if that's what it takes to move the poop out, it is fine. Shelley