We have been using Enfamil Premium Newborn and our LO is on Zantac but he still spits up a ton after eating. We think we should try another formula possibly. What are you using if your LO has reflux? It seems like he use to sleep longer when I was EBF but now that he's on F he's up every 2 hrs during the day to eat and every 3 at night! Before he would go every 3 during the day and at least 5 hrs for the first stretch at night. I feel like I'm going backwards!!!