I am on my 3rd go around with my foster. After vetting in October ,fecal came back 5+ . Went home with 5 measured baggies of Panacur powder for day 1 with topical Advantage Multi. Day 2 gets a baggy of panacur on his breakfast and 3ml of liquid Ivermectin. Day 3,4,5 each get a baggy of Panacur. This is repeated in 2 weeks then a fecal check. We have done this routine 3 times mow and got the fecals to 1+.Our vet has been consulting University of Fla and hooks are just resistant to drugs.