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What is Nexgard Spectra?
NexGard Spectra is a revolutionary parasite prevention product, available in one tasty monthly Chews. Combining two active ingredients, Nexgard Spectra provides complete protection against the most common internal and external parasites of dogs in Australia. It comes as a soft, tasty beef-flavoured Chews which your dog will love. It is required to be given monthly.

What parasites does Nexgard Spectra protect against?
NexGard Spectra provides protection against fleas, ticks, mites, heartworm and intestinal worms including the flea tapeworm. It does not provide protection against hydatid tapeworm.

Should I use this product? Nexgard Spectra is suitable for:

Highly recommended for dogs who live in a high risk TICK area (such as the Eastern Coastline of Australia)
Also highly recommended for dogs who live in a high risk HEARTWORM area (such as Northern tropical areas)
Safety information: Not suitable for puppies under 8 weeks of age, pregnant or lactating animals.
Please note: if you are giving Nexgard Spectra monthly, your dog does not require a heartworm injection at their annual vaccination appointment.
Is extra coverage required? Nexgard Spectra does not protect against hydatid tapeworm, which can be transmitted from eating offal and carcass material (particularly in farm settings). If this pertains to you, pair with Paragard every 6 weeks. Nexgard Spectra does not provide protection against the tick-borne disease Ehrlichiosis. If you live in an affected area, pair this product with a tick Collars. Check out our Guide to Ehrlichiosis in Australian Dogs for more information

Dosing Table
Select the right dose for your dogs body weight. If you are unsure about dosing this product, please contact our Vet Squad.

Dog Weight

Dog Size

Breed Guide (Approximate)

Pack Colour


2-3.5 kg

Very Small

Pomeranian, Chihuahua, Yorkshire Terrier


9.4mg Afoxolaner and 1.9 mg Milbemycin Oxime

3.6-7.5 kg


Shih Tzu, Pug, Cavoodle


18.8mg Afoxolaner and 3.8 mg Milbemycin Oxime

7.6 - 15 kg


Jack Russell, French Bulldog


37.5 mg Afoxolaner and 7.5 mg Milbemycin Oxime

15.1 - 30 kg


Border Collie, Kelpie, Staffy, Boxer


75 mg Afoxolaner and 15 mg Milbemycin Oxime

30.1 - 60 kg

Very Large

Golden Retriever, St Bernard


150 mg Afoxolaner and 30 mg Milbemycin Oxime

Why is Nexgard Spectra important?

Ticks: Tick paralysis can be fatal, so prevention is essential if you live in a tick area or are planning to visit one. Paralysis ticks are found in most areas of the east coast of Australia and can be active year-round in warmer climates. NexGard Spectra is highly effective at killing ticks on dogs, offering tick control for a full month.

Heartworm: NexGard Spectra also provides heartworm prevention for dogs. Immature heartworm larvae are spread by mosquito bites. Left untreated, heartworm infection can cause heart failure which can be fatal.

Intestinal Worms: Intestinal worms may cause a wide range of clinical signs in dogs depending on the species of worm, the age of the animal and the extent of infestation. NexGard Spectra is a broad-spectrum dog wormer which treats and controls roundworms, hookworms and whipworms.

Flea Tapeworm: The flea tapeworm is transmitted by fleas. Dogs become infested by ingesting adult fleas carrying the tapeworm larvae. Effective flea control with NexGard Spectra prevents flea tapeworm infestation.

Mites: Infestation with mites can cause severe irritation to your dog?s skin and ears. NexGard Spectra is an effective ear mite treatment for dogs and also treats and controls sarcoptic and demodectic mange.