Matthew, I'm so glad to hear you got your dragon to a vet who was able to diagnose and treat your animal. I only saw this link today, but the second thing I thought of after MBD was vitamin B deficiency (because you mentioned the twitching).
I second the others who've suggested using probiotics during/after the antiparasitic treatment--it's very hard on their system, and replenishing their intestinal flora will help them keep their appetite and recover more quickly. I wouldn't use ReptAid during the antiparasitic treatment, but like Brian I've found it to be very useful as a supportive measure and would consider administering it after the parasitic regimen is finished.
FWIW, I brought a BD who had MBD back from the brink by feeding phoenix worms (not cheap, but they have an excellent calcium/phosphorus ratio) and changing his UV light to a MegaRay mercury vapor bulb. You can buy P. worms in quantity from
http://www.phoenixworm.com by asking for their wholesale pricing.
While he wasn't eating well, I assist-fed him 2x/day (via syringe) a slurry I made in the blender that contained probiotics, a multivitamin, and ReptAid along with the phoenix worms, greens, and other veggies (gross, but it worked). It took some time and patience, but his appetite came back pretty quickly and today he's doing great (though his tail has remained bent).
Wishing you the best with your beardie, and I'm really glad you got him checked out so that he can get back on track!
