It's time for my chickens to have their annual worming (especially because one pullet is behaving a little oddly). I thought about using Eprinex instead of ivermectin because of the egg withdrawal time. Have any of you ever used Eprinex, and do you think the dosage would be the same? Last year, when I used ivermectin pour-on, I went by threehorses's dosage guide: 1 drop for a small or OEGB sized bantam. 2 drops for a large OEGB, small but not "micro" bantam. 3 drops for a regular bantam hen. 4 drops for an average hen or smaller large fowl rooster. 5 drops for the average large fowl 6 drops for a larger large fowl 7 drops for giant breed Thanks!!