My son has had issues with constipation since birth. He was born at 28 weeks and has been on Miralax since I brought him home. Miralax is now available over the counter. We have always had success with the Miralax, you will just have to monitor and adjust the dosage.

It is a white powder you can mix in with any liquid. Ryan likes it best with his milk. I would suggest getting blending it so it gets mixed well. It is very grainy if you don't.