Thanks so much for the reply.... I started him on Nan Gold HA today - and I have noticed less vomit already (may be coincidence of course). We will have to wait and see how the other end goes though... I spoke to the MCHN and she suggested that the constipation would be related to the zantac rather than the formula, but that an 'easy digest' formula may help.

Thanks again, and I will check out the other forum that you mentioned....