The dog wormers I know are poisonous. You need to throw away the eggs for a couple of weeks if you use it.
all wormers contain the same chemicals. dosage for each animal or people is what makes difference - a vet explained. as I mentioned before dosage for chickens should be doubled. the reason to throw away the eggs is not that eggs contain wormer but bc no research has ever be done, so better safe than sorry. I boil those eggs for a week and give them back to the chickens. common sense says that if they have 1/2 pill and digest it fast there is no time for the chemicals to come to the eggs. but still I don't eat eggs for a week just in case. human wormers contain the same chemicals as dog's and they are poisonous for the worms only. but worms can build resistance if we take a small amount of wormer - that is the real problem.