It's your choice whether to eat eggs after worming or not, no matter what type of wormer it is. The same can be said about antibiotics whether there's a withdrawal period or not. One thing we know is that there IS residue in the eggs, no matter how slight. The problem is we dont know if an individual might be sensitive or allergic to the product which can possibly have dire consequences at the worst. Another thing we know for sure is eggs should NOT be fed back to chickens due to wormer/antibiotic residue in the eggs. Why? Because worms and bacteria build resistance to the product (wormer/antibiotic respectively.) When this happens the product requires increased dosage or a different kind of product is needed to treat/cure the problem. Everyone has heard of antibiotic resistance due to its overuse when not needed, rendering alot of antibiotics useless. The same is true for wormers; that's why ivermectin/eprinex is useless as wormers in chickens.
I only mention this simply because alot of folks figure if it's okay for them to eat the eggs, it's okay for chickens as well.
Personally, I observe withdrawal periods.
Edited by dawg53 - 11/15/13 at 10:29am