NexGard Spectra (Green) is a monthly oral chew for medium dogs weighing 7.6–15 kg. It provides broad-spectrum parasite protection in a single dose, covering both external and internal parasites.

Each chew targets fleas, paralysis ticks, brown dog ticks, heartworm, mites, lice, and a range of intestinal worms including roundworm, hookworm, whipworm, and tapeworm. Fleas are killed rapidly after administration; paralysis ticks are controlled within 48 hours. The beef-flavoured chew is generally well accepted, which makes monthly dosing straightforward for most dogs.

NexGard Spectra is a common choice for owners who want to consolidate parasite prevention into one product rather than managing separate flea, tick, and worming treatments. It requires a valid prescription from a veterinarian in Australia.