DS is on a vicious cycle of constipation. Karo syrup works, but then once I quit giving it, he is constipated again within a week or two. A suppository has worked, but same thing. I feel like I need to get to the root of the problem, and I'm wondering if switching formulas can help. I think I am going to call the pedi tomorrow and see what they say. Just wondered if this has worked for others?