I have been using it on my other birds 40+ for the last 3 round of worming none have dropped yet from it, so will have to keep testing with it.. I have been using it for the last 6 years or so on my 4 legged buddies to treat for worms including Heartworms, Dosed at the Sheep weight on the bottle.. Thanks for the info.There is a product made in Mexico, Tri-Fen Plus and many years ago it was a combo of fenbendazole and ivermectin. Today it's a pill that has 30mg albendazole (fenbendazole) and .2mg abamectin, which is like ivermectin, I think. Dose is one pill per 2.2 pounds. Probably safe to use them together, but I would want to experiment on a bunch of chickens first, lol. It looks like this:
-Kathy