My son was put on Zantac at 3 months old, didn't work at all for him. Never slept longer than 20-30 minutes. Read somewhere later that Zantac can cause that, don't know if that is medically proven or not. The night he was put on Prevacid he slept for 12 hours straight. He is almost 5 now and still on it. It's been the best medicine we tried and that actually works. Good luck.
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