This is just a suggested list. Get with your vet for more information and his/her suggestions.
Because Emus are food animals, FARAD (Food Animal Residue Avoidance Databank) prohibitions apply in the use of these drugs:
Furazolidone (except approved topical uses)
Nitrofurazone (except approved topical uses)
source: The Emu Farmer's Handbook
Emus destined for slaughter should not be wormed, vaccinated or given drugs for 90 days prior to harvest. Ask your vet for more information on regarding these FDA requirements.