/b/veterinary-news/posts/zoetis-launches-new-topical-parasiticide-for-cats Zoetis has launched Stronghold Plus (selamectin/sarolaner), a topical combination of parasiticides that treats ticks, fleas, ear mites, lice and GI nematodes and prevents heartworm disease in cats. Stronghold Plus contains the same selamectin founden-USTelligent Community 10