NexGard Spectra for Dogs 15.1–30kg is a monthly beef-flavoured chew that covers fleas, ticks, heartworm, and intestinal worms in a single dose. It's sized for medium to larger dogs in the 15.1–30kg weight bracket, and the 6 pack gives six months of continuous protection. Prescription parasite control that goes down like a treat rather than a fight over a tablet.

The active ingredients are afoxolaner (fleas and ticks) and milbemycin oxime (heartworm and intestinal worms including roundworm, hookworm, and whipworm). Fleas start dying within hours of the dose, and the chew controls paralysis ticks, brown dog ticks, and bush ticks — relevant across most of Australia. Heartworm prevention needs to be maintained without gaps, which is why the monthly rhythm matters more than the specific product.

Owners pick NexGard Spectra when they want one product doing the work of three or four. Dogs generally take it willingly, which removes the guesswork around whether a topical was licked off or a tablet spat out. The 6 pack is the standard purchase interval for households running year-round protection.