Is Enfamil AR Good for Acid Reflux??

Has anyone been using the Emfamil AR? If so how has it been?? I took my LO to the doctor and they are trying to diagnose her with Acid Reflux..they want her to go in for a Test to take pics of her stomach but they want her fast for 4 hours (I refuse to let her go that long without eating) they also perscribed me meds for it...I'm looking to switch her milk to AR and I think it'll work...has anyone been having this issue??