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One monthly chew. Complete protection against fleas, ticks,
and heartworm, so your dog can live every adventure safely.
What is Simparica Trio?
Simparica Trio is a vet-recommended monthly chewable tablet for dogs that combines three powerful active ingredients in one. Protecting against fleas, paralysis ticks, and heartworm disease simultaneously. No more juggling multiple treatments.
Prevents infection, kills juvenile heartworm and eliminates the mosquitoes that transmit it.
Kills fleas within 4–8 hours and ticks within 24 hours.
Monthly protection that lasts up to 35 days for fleas & ticks.
Treats and controls heartworm, roundworm, and hookworm in one chew.
Treats ear mites, demodex mites, sarcoptic mange, and flea allergy dermatitis.
Tasty, liver-flavoured chew that goes down a treat, with or without food.
Dogs should be searched daily for paralysis ticks.
The Dream Dog House Quiz
Answer seven quick questions to reveal your dog's dream home, then enter for the chance to win a prize bundle worth over $2,000.
Takes approximately two minutes
Your prize bundle
Competition terms, eligibility requirements and closing dates apply.
Your dog's dream home
Adventure-ready protection from Simparica Trio
Shop Simparica Trio at VetShopAustralia →Share your result
Enter your details to go in the draw to win over $2,000 in prizes.
We'll email you at if you win. Keep an eye on your inbox, the winner will be announced on October 30 2026.
While you wait, protect your pup today
Simparica Trio gives your dog all-in-one flea, tick, and heartworm protection in a single monthly chew. Vet-recommended and available at VetShopAustralia.
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Available now at VetShopAustralia
Select the Simparica Trio pack that matches your dog’s current weight.
Simparica Trio is given once a month according to your dog’s weight.
1.25–2.5 kg
The yellow weight range for puppies and very small dogs weighing between 1.25 and 2.5 kg.
Available quantities
2.6–5 kg
The purple weight range for extra-small dogs weighing between 2.6 and 5 kg.
Available quantities
5.1–10 kg
The orange weight range for small dogs weighing between 5.1 and 10 kg.
Available quantities
10.1–20 kg
The blue weight range for medium dogs weighing between 10.1 and 20 kg.
Available quantities
20.1–40 kg
The green weight range for large dogs weighing between 20.1 and 40 kg.
Available quantities
40.1–60 kg
The red weight range for extra-large dogs weighing between 40.1 and 60 kg.
Available quantities
Not sure which pack to choose? Weigh your dog before purchasing and select the product that corresponds with their current weight. Always follow the product label.
