I also saw my first reaction to Fervac-D around 3 weeks ago.  Our rescue used
to use Fromm-D, but when they went to Galaxy-D we started to use the Fervac,
since Solvay recommended not to use it in ferrets.  Anyway, being a vet tech.
I have seen reactions before, but never this bad.  The ferret started to
vomit, have diarrehea, and stopped breathing all in the second it took to
load the Epineohrine.  I went sub-q first and she still did not react, so I
went intercardiac and she snapped out of it right away, but boy was that a
scare!!  I called our vet and talked with him some.   3 weeks later she is
just wonderful thank God!!.  Stephanie
[Posted in FML issue 1160]