Hi all what is a good worm preventative for dogs as we have a kelpie x and nothing seems to work on him, we have tried all the expensive medications to no avail then somebody told us about " Fenbendazole " and after looking this up came up with " panacur 25 " it is supposed to be for farm animals, but can treat domestic as well. Does anybody know what the correct dosage would be as I have been told 1ml for 2kg. So for my 30kg dog I would give him 15ml. for 3 days. Thanks