Hmm… my first thought would be to check that the dose of Prevacid was appropriate for her age and weight. Was she getting the marci-kids recommended dosage? http://www.marci-kids.com And how were you giving the solutabs? If the compounded Prevacid was made properly, it wouldn’t matter when it is given, but the solutabs will work best on an empty stomach followed up with a feeding 30-60 minutes later. Prevacid will also work best for babies if dosed 2 or 3 times a day.
Now if the dosage and timing was all right and she didn’t benefit from the Prevacid after giving it at least a 2 week trial, then I would think trying a different PPI like Zegerid would be a good idea. Since her testing shows she has reflux, and her symptoms are consistant with silent reflux, she should hopefully find relief with some form of a PPI.
Just another thought, do you know if she has milk/soy protein intolerance (MSPI)? This can often be a cause of reflux and removing milk and soy from your diet if you are breastfeeding, or switching to a hypoallergenic formula is she is formula-fed could help as well.
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