Pregestamil / Neocate dependant kid

Does anyone here have a kid (over 2 or 3 years old) who is dependant upon
the yucky smelling/testing Pregestamil or Neocate Jr?

My 3 yo son is dependant upon the stuff. By dependant I mean that if he does
not drink about 700cc of it each day, he will not survive (grow). He has
special needs because of GI problems. We've tried all types of formulas and
now we're switching to the more age-appropriate Neocate Jr. made in the U.K.
as per the GI doctor's request.

All this stuff smells and tastes so bad (it is predigested) and I feel
horrible making my kid drink this. We've been doing it for 2 years and now
he's on strike (flavoring does not help matters, we've tried crystal light,
vanilla, sugar, cocoa, etc.). We had to get a g-tube to pump this stuff in
him at night time. I wonder how long we'll have to keep this up before he
will be able to switch to something that tastes better.

My question is this... are there any other parents out there who are going
or has gone through this type of thing? Or are we the only ones out here
force feeding a 3yo nasty tasting formula? This is not a fun way to go!!

Richard