Based on veterinarian and brother (also a vet) recommendations, we use Advantage Multi. It protects against heartworm, fleas, sarcoptic mange, intestinal parasites and ear mites. In some animals, they feel a little punky after application. We apply it at night, so they can sleep it off.
"The greatness of a nation and its moral progress can be judged by the way its animals are treated." -- Mahatma Gandhi
Czarny, black cat
Rainbow Bridge: Spotacus, Alexander the Grrreat, and so very many more