Re: reflux, enfamil AR, constipation
Change brands/formulas. It absolutely could be. You can add some prune juice or depending on the age, prune puree. Formula can cause constipation so I'd change formulas if it is that bad. Gerber's Good Start - just 3 oz a day made my son poop.
Mom to my wonderfully sweet toddler who is the joy of our lives.