Here is a list of supplements I use that help prevent catabolism in addition to their other benefits:

BCAA's (Xtend)
Glutamine
Dextrose/Maltodextrin (Preworkout, basically whatever I have around)
Waxy Maize Starch (Postworkout)
CEE
Ephedra/Caffeine/Green Tea Stack
Fish Oil (general fatloss/health but supposedly is anti catabolic also)