NexGard Spectra is a monthly chewable tablet for large dogs weighing 30.1–60kg, providing broad-spectrum parasite protection in a single dose. It covers fleas, paralysis ticks, heartworm, mites, lice, and intestinal worms — the full spectrum, not just the headline parasites.

The active ingredients are afoxolaner (for fleas and ticks) and milbemycin oxime (for heartworm and intestinal worms). Afoxolaner begins killing fleas within hours and controls paralysis ticks for a full month. Milbemycin oxime covers hookworm, roundworm, whipworm, and heartworm prevention. The beef-flavoured chew is accepted readily by most dogs without the need to hide it in food.

Owners choose NexGard Spectra when they want one product to cover the lot — no separate heartworm tablet, no topical application. The monthly schedule is straightforward to maintain, and the chewable format avoids the mess and handling restrictions of spot-on treatments.