Having been using advantix on my dogs and they are still getting ticks I was thinking of changing to one of the above. I have googled (why did I do that!) and have scared myself.... Bad for the dogs, will wreck the environment etc.
I am not sure I like the idea of the collar as my DC cuddle the dogs a lot -but the manufacturers say that is not a problem. Oral chemical sound drastic .....
I have to use something which do any of you use? I would be using on border collies. My vet says both are as good as each other so left it to e to make the decision as you can see I am incapable 