Well, I will tell you that both of my boys got worse on Neocate before getting better, so you need to stick it out the full two weeks before changing anything else. I felt EXACTLY like you except I called the on call doctor on day 3 in tears telling them it was worse not better with Dylan! THey told me to stick it out and after about a week or so (it can take longer the older the baby is) things slowly got better and within two weeks I had a baby who was out of pain and then started sleeping through the night. I can only think to describe it as all the bad things working their way out of his system and he was miserable, but once that happened, we had a new baby, so please give it a bit more time and hang in there!!! also if you change the meds now, then you won’ t know if something is better or worse with too many changes, so just keep going on the same course for a bit longer. That is what I would do if it were me……
Also, could he be teething?