Hi scarlett. we have had Em on reflux meds and standard formula and she still had massive amounts of diahorrea and weight loss. we have done challenge tests and will have thorough allergy testing in 6 months. There is also family history of lactose intolerance. it is definitely a comnmbination. we have the best paed in SA and yes he in expensive lol. i was going to ask you though, what is the formual for working out how much zantac to give as she has started to get really refluxy again.