Having read these posts, can I add that I think you should only worm goats when it is clinically needed !! Too many people worm regularly without any idea if it is necessary !! They also worm without knowing the correct weight of the goat ,mentioned in some posts , it is underdoseing of wormer than gives the worm not the goat the ability to build up resistance. I was always told to stick with one type of wormer for a year then change ,not change every time you worm unless you have had a FEC done and there is a need for a specific wormer. Please don't ask other Goat keepers what they are useing ,speak to your vet, his or her local knowledge is invaluable assuming her knows anything about goats, if not change your vet or speak to local Goat keepers to see who they use !!! Sorry for the rant