NexGard Spectra for Dogs 15.1-30kg (Purple) in the 3-chew pack is a three-month starter size of the large-dog NexGard SPECTRA dose. It's a beef-flavoured monthly chew that bundles fleas, ticks, heartworm and intestinal worm coverage for medium to large dogs.

Each monthly chew kills adult fleas rapidly, treats and controls paralysis ticks for a full month, and covers mange mites and biting lice. It prevents heartworm disease and treats and controls roundworm, hookworm and whipworm. The beef flavour is designed to be taken as a treat rather than hidden in food. The purple pack is calibrated for dogs 15.1 to 30 kilograms, covering most mid-to-large breeds like Labradors, Kelpies and Staffy crosses.

The 3-pack is the shorter starter size for owners trying NexGard SPECTRA before committing to a 6-pack, or for running coverage through a seasonal high-risk period. Most households on continuous year-round coverage step up to the 6-pack once they're confident on the product.