Hi there! My son has reflux too, he was diagnosed at 4m, he is 8m now.
How long has baby been on Zantac? We began on Zantac and it worked very well. Be aware that the dose is weight based, so as he gains weight he will need the drug increased.
What formula are you using? We use Alimentum ready to feed, we have found that it great reduces gas, and spitting up.
What bottles are you using? We use Dr Browns bottles, again they reduce the amount of air that baby sucks in during feedings. I love them!
Is baby spitting up alot? Does he cry when you lay him flat?
Here are a few tips for you, if baby is in pain - he won't sleep well.
~Elevate the head of his mattress, it should be pretty high. You could also get a Tucker Sling (
http://www.tuckersling.com) Also elevated anywhere else he has to lay down, changing table, bassinet - whatever.
~Keep him upright (not bent at the tummy either though as this puts pressure on the immature sphincter and may cause him to spit up more) we used a bouncey seat, or his stoller reclined - so upright for 20-30mins after the feeding.
~Burp well, but don't pat - try rubbing in upward motions. When you use pat/shhh, try rub/shh - sometimes patting can make things sore in the tummy area.
~A paci is great, if he will use it, stick with it lol
~A swaddle is also great.
I hope this helps some, please let me know if I can help in any way. Also you can stop by the reflux board, tons of great info there and Ryan'sMom (the moderator) is wonderful.
Love,
Zoey