NexGard Spectra is a monthly beef-flavoured chew that combines flea, tick, heartworm and intestinal worm protection in a single dose. This pack is sized for small dogs weighing 3.6 to 7.5kg, and the 6 Pack covers half a year of monthly treatments. The chew is given like a treat, no spot-on application required.

The active combination targets fleas within hours and kills three tick species including the paralysis tick over 48 hours. It also controls roundworm, hookworm and whipworm, and prevents heartworm when given every month without a gap. The beef flavour is designed to be palatable enough that most dogs take it voluntarily, which removes the wrestling match that comes with tablets. One chew a month covers the full parasite spread that would otherwise need two or three separate products.

Owners tend to choose Spectra when they want a single monthly routine rather than juggling a flea treatment, a wormer and a heartworm preventative. The chewable format also suits dogs who swim often or get bathed regularly, since there's no topical to wash off.