NexGard Spectra (Yellow) is a monthly oral chew for small dogs weighing 3.6 to 7.5 kg, designed to protect against a full spectrum of common parasites in a single dose. It eliminates the need to combine multiple separate treatments — one chew handles fleas, ticks, heartworm, intestinal worms, mites, and lice.

Active ingredients afoxolaner and milbemycin oxime work systemically after the dog chews and swallows the tablet. Fleas begin dying within hours of dosing; paralysis tick coverage extends across the full month. Heartworm prevention requires consistent monthly dosing — missed doses reduce protection. The weight bracket covers small breeds such as Maltese, Cavoodles, and similarly sized dogs. The beef-flavoured chew is palatable enough that most dogs take it directly without needing to be concealed in food.

Owners with small dogs in tick-prone regions of Australia tend to keep NexGard Spectra in rotation year-round. The monthly routine is straightforward, and the all-in-one format removes the need for separate spot-on treatments or additional worm tablets.