Enfamil A.R. Clinically proven to reduce frequent spit-up* All babies spit-up from time to time, but frequent spit-up after feeding can become inconvenient. Enfamil A.R. is proven to significantly reduce frequent spit-up, giving moms the assurance that their baby is getting and keeping all the nourishment they need to grow healthy. 1. Designed to flow freely through nipple and thicken slightly in baby"s tummy. 2. More balanced nutrition than adding rice cereal to formula. 3. DHA and ARA to support baby"s brain and eye development. This formulation is also marketed as Enfamil RestFull.*Based on a clinical study of Enfamil A.R. before the addition of DHA and ARA with babies who spit up frequently (5 or more spit ups per day), comparing frequency of spit up after feeding Enfamil A.R. to the same babies at the beginning of the study. Ask your doctor if Enfamil A.R. is right for your baby.Information current as of August 12, 2010. 4 Pack= 8 Powder Refills (132.8 total oz.) Guest will receive 4 cartons with each carton containing 2 powder refills .