NexGard Spectra for dogs 1.35–3.5kg in the 6-pack is a six-month supply of monthly beef-flavoured parasite chews for very small and toy-breed dogs. It provides continuous protection against fleas, ticks, heartworm, and intestinal worms through the half-year, suited to owners who prefer to stock up rather than buy monthly.

Each chew combines afoxolaner and milbemycin oxime: afoxolaner kills fleas and controls paralysis ticks, brown dog ticks, bush ticks, mites, and lice for a full month, while milbemycin prevents heartworm disease and treats roundworm, hookworm, and whipworm. The lowest weight tier ensures toy-breed dogs and young puppies from 8 weeks of age receive a properly calibrated dose.

Six-month packs remove the risk of a dosing gap between purchases, which matters most in tick-active coastal regions where a single missed month can leave a small dog exposed. Toy-breed owners running year-round parasite prevention tend to stock the larger packs for this reason.