My son had a problem with constipation. Is your child on solids yet. You might want to try peaches. It worked every single time. How and what milk is you little one getting. Soy tended to constipate him more. We used that in the beging because we thought he may have been lactose intolerant. Then we switched to Nestle Good Start with the purple label. That was also contipating him too. So we switched to DRA and ARA. That seemed to do the trick. What I then found out that is was the protiens in the formula that was causing the problem. I don’t think it is the cah meds, my oldest son also had a problem with constipation due to his milk consumption. So I add plenty of raw veggies and salad. Eventually the problem corrected itself. Good luck! Peached are a good source of fiber. If all else fail you can try alittle bit of kayro syrup in the formula.