B.B.
My DD had severe GERD and was on prevacid for 9 months. It really helped her condition. at 13 months, we took her off and she responded wonderfully. She seemed to have completely outgrown it by that point. I would wait until after a year. I agree with you about not giving juice unless it's very diluted with water. For my little one, her digestive system was very immature and to this day she has major issues with digestion (aside from the GERD). Juice seems to cause her a lot of gas and discomfort and she's almost 2 now! Good luck. I know GERD isn't fun to deal with, but as long as you keep it under control until he outgrows it, you and your baby will be happier :)