NexGard Spectra for Large Dogs (15.1–30 kg)

One monthly chew for fleas, ticks, heartworm and intestinal worms.

NexGard Spectra is a beef-flavoured monthly chew that covers fleas, paralysis ticks, heartworm, roundworm, hookworm and whipworm in a single dose — so you don't need a separate wormer. This size suits dogs 15.1–30 kg, and it's sold in 3-packs and 6-packs.

Where to buy — compare live prices

A 6-pack typically runs about $95–$135 · indicative only

Prices change daily — tap a retailer to see the live price.

Budget Pet ProductsShop →

VetSupplyShop →

PetCircleShop →

PetbarnShop →

Pet ChemistShop →

We may earn a commission when you buy through these links — it never changes your price. Live prices are shown on the retailer’s site.

When to buy it cheap

All-in-one parasite chews hit their lowest around EOFY (June), Amazon Prime Day (July) and Black Friday (late November). Outside those windows, prices stay fairly flat.
A 6-pack near the bottom of the range is a genuine stock-up price — buy two if your dog's weight is stable.
Online vet retailers (VetSupply, Budget Pet) usually beat big-box stores, but check postage before you commit.
It's prescription-free in Australia, so you're free to shop purely on price.

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The real cost isn’t the product — it’s the vet bill. A single emergency can run into the thousands. Many owners weigh up pet insurance for exactly these moments.

Questions

What does NexGard Spectra protect against?

Fleas, paralysis and other ticks, heartworm, and intestinal worms (round, hook and whip) — it's an all-in-one, so no separate wormer is needed.

How often do I give it?

One chew every month, ideally on the same date each month so it's easy to remember.

Is now a good time to buy?

Compare the live retailer prices above. Near the low end of the typical range — or during EOFY, Prime Day or Black Friday — is a strong buy.