Horse AND dog owners, beware! In 2010, they'll be coming out with "tasty" Vectin ivermectin cookies for horses. This is a horse dewormer, and if it's palatable to horses, we worry dogs will get into large amounts and get ivermectin toxicity from this! This toxicity results in blindness, tremoring, seizures, difficult breathing, etc! When in doubt, keep all horse dewomers away from dogs!