We started my 12 week old on Prilosec 2 weeks ago. The pharmacist who compounded it told us we needed to shake before first use, but not before EACH use. So, we went home and did this and after 10 days of not seeing relief called the pharmacy wondering if maybe they didn’t compound it correctly. That’s when we found out we needed to be shaking it prior to each use to get the active ingredient. So we got a new batch, which she has been on now for 4 days and she seems to be super gassy since starting on it. She is on Alimentum, which we put her on 3 weeks ago after figuring out she has a severe intolerance to my breastmilk. She’s also on a probiotic (Culturelle). Could the Prilosec be causing the gas? Or is it a combo of the Prilosec and probiotic? The pharmacist said the gas could be due to the Prilosec and suggested going with an H2, as it shouldn’t cause the gas. However, her reflux is really severe and I’ve been told the H2s aren’t as effective. Also wondering if we should maybe try a more elemental formula like Elecare. Just don’t think that is the problem as she wasn’t this gassy on Alimentum before. Any help would be appreciated!