How long did it take to see results in LO? Everything I've read online says it can take anywhere from 1 to 3 weeks. LOs reflux seems to be getting worse so I called to ask about upping her dosage (Zantac) or switching meds, and they suggested I try cutting out dairy first. They told me to give it a few days and then give them a call, but that doesn't seem long enough to see results. I gave it three days and I just called them back because she's still spitting up a lot and seems to be in quite a bit of pain. I'm waiting for them to call back and hope we can get in ASAP. Maybe this is the reason for her horrendous sleep, too.