NexGard Spectra Red is a monthly beef-flavoured chew for dogs weighing 30.1–60kg. A single monthly dose covers fleas, ticks, heartworm, intestinal worms, and mites — the full common-parasite spectrum in one chew, rather than juggling separate treatments on different schedules. Most dogs take it voluntarily without it needing to be hidden in food.

The active combination of afoxolaner and milbemycin oxime delivers the breadth of coverage. Afoxolaner handles fleas — killing within hours of the first dose — along with paralysis ticks, brown dog ticks, sarcoptic mange, and demodectic mange. Milbemycin oxime addresses heartworm prevention and intestinal worms including roundworm, hookworm, and whipworm. There's no topical application involved and no need to keep dogs off furniture after dosing.

The appeal for large dog owners in tick-prone areas is straightforward: one monthly chew replaces a combination of topical tick treatment, monthly heartworm preventative, and quarterly worming. It's also hard to forget a chew the dog reminds you about. The 6-pack format covers half a year in a single purchase.