Instead of trying to get your current supplier to lower their price,
which is highly unlikely, why not just price it elsewhere?

Check out this link and get a quote from them. They will compound
prednisolone to any specifications and it is shelf-stable (no
refrigeration). Plenty of flavorings to add in if you need to. I've
ordered from them several times and have always been very happy with
the quality of the medicines and with the speed and courtesy of their
service.

http://www.pethealthpharmacy.com/

Jeff
In Loving Memory of Neo, Trinity, Morphy, Baby Girl, Dozer, Possum,
Pip, Pop, Sabrina, Minnie Mouse, Hunny, Misty, Frodo, Baggins, and
Mr. Parker
Caring for Luna, Boomer, and Zoomer 

[Posted in FML 7520]