The kid had been in for chiro at the one over in Mandan at the gal's place who kinda specializes in pregnant women and kids, but Zantac was the ticket. I think he had to be on it for about 10-12 weeks before he outgrew the need for it. They prescribe a pretty mild dose that is based on the kid's weight, once the Zantac kicked in he was gaining a pound a week. After having really struggled the first month, or so before starting the Zantac.
You could EASILY tell when he outgrew his existing prescription and needed an increase based on his weight. Night and day kind of difference!