What has worked for your LO? We were in Zantac and for 3 days it was amazing! LO mostly has the issue at night and it keeps him up, the first few days of Zantac he slep great and didn't spit up at all. Since it stopped working our doc has us trying Prilosec, yesterday was the first day and he spit up more than ive ever seen and had diarrhea(very uncommon for him) I know it takes time do robderi f if he just has to get used to it. My doc hasn't reccomended changing formula but wondering if it worked for others? Hes on enfamil newborn now.