Simparica Trio Chewable Tablet for Dogs, 44.1-88 lbs, (Green Box), 6 Chewable Tablets (6-mos. supply)

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About This Item

Details

  • Triple Protection in One Monthly Chew: Simparica Trio provides complete flea and tick prevention for dogs plus protection against heartworms and intestinal worms. For puppies eight weeks and older weighing at least 2.8 lbs.
  • Heartworm Protection: Proven 100% effective against heartworm disease in studies supporting FDA approval.
  • Kills 6 Types of Ticks & Helps Prevent Lyme Infections: The only combination preventative proven to kill Gulf Coast, Deer, American Dog, Lone Star, Brown Dog, and Asian Longhorn ticks.
  • Stops Fleas & Treats Intestinal Worms: Kills fleas before they lay eggs to prevent infestations. Also treats and controls roundworms and hookworms.
  • Easy Once-a-Month Dosing: Give with or without food. Backed by a 100% satisfaction guarantee on prevention.

Ingredients

Instructions

FAQ

Learn More About Simparica Trio From Our Team of Experts

Don’t Just Protect. Triple Protect.

Simparica Trio is the first FDA-approved monthly chew that protects dogs against heartworm disease, ticks, fleas, and intestinal worms. One tasty pork liver-flavored chew, given once a month, does the job of 2 or 3 preventatives.

The #1 Vet Prescribed Combo Preventative

Simparica Trio is the #1 vet prescribed combo preventative and is FDA-approved to protect your dog against three categories of parasites. It treats and controls 6 kinds of ticks, including the deer tick that may carry Lyme disease.

Protected 15 Million Dogs & Counting

Trusted by veterinarians and pet parents, Simparica Trio has protected over 15 million dogs and counting. A study found that 9 out of 10 dogs readily ate Simparica Trio, a pork liver-flavored chew. Simparica Trio comes with a 100% satisfaction guarantee and is approved for puppies as young as 8 weeks old, weighing at least 2.8 lbs.

Protect Your Dog & Earn Rewards From Zoetis

Your 6- or 12-count Simparica Trio purchase may be eligible for Petcare Rewards points. Redeem your points for rewards toward future veterinarian care and more. Learn more at zoetispetcare.com/rewards.

About Simparica Trio

At Zoetis, we’ve helped pets live their best lives for over 70 years. Zoetis offers a comprehensive range of products to support your pet’s health—from pest prevention and pain management to allergic itch relief and more. Know that we’ll always be here for you and your pet, no matter what.

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IMPORTANT SAFETY INFORMATION

Use with caution in dogs with a history of seizures. Simparica Trio contains sarolaner, a member of the isoxazoline class, which has been associated with neurologic adverse reactions including tremors, ataxia, and seizures in dogs with or without a history of neurologic disorders. The safe use of Simparica Trio has not been evaluated in breeding, pregnant, or lactating dogs. The most frequently reported adverse reactions in clinical trials were vomiting and diarrhea. See full Prescribing Information at SimparicaTrioPI.com.

For the treatment and control of Gulf Coast Tick (Amblyomma maculatum), Deer Tick (Ixodes scapularis), American Dog Tick (Dermacentor variabilis), Lone Star Tick (Amblyomma americanum), Brown Dog Tick (Rhipicephalus sanguineus), and Asian Longhorned Tick (Haemaphysalis longicornis). Studies to support FDA approval showed that 1 dose provided 100% protection against heartworm disease. Simparica Trio starts killing fleas within 4 hours. For the treatment and control of roundworm (immature adult and adult Toxocara canis and adult Toxascaris leonina) and hookworm (L4, immature adult, and adult Ancylostoma caninum and adult Uncinaria stenocephala) infections. Indicated for the prevention of Dipylidium caninum (tapeworm) infections by killing fleas.

References

Data on file. ZMR: Kynetec PetTrak US FTH National Data January 10, 2025. Simparica Trio – 15M Dogs and Counting, PetTrak Kynetec Veterinary Channel Review Q4, 2024. Study A161C-US-15-634. Data on file. Zoetis Inc.

STR-00709R1

4.8
Rated 4.8 out of 5 stars
18738 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

90% Positive

Effectiveness

89% Positive

Ingredients

87% Positive

Long-Term Benefits

88% Positive

5497 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 1 out of 5 stars
By Dogo4Life on Mar 29, 2026

Talk to your vet about about adverse reactions before using.

I had three dogs on this for a few months. One dog had digestive issues. Smallest dog who was 3 years old and 16lbs started having seizures out of no where which

I had three dogs on this for a few months. One dog had digestive issues. Smallest dog who was 3 years old and 16lbs started having seizures out of no where which have continue randomly (a few a week to every other week) over the next 6 months. My first google search showed a link between this drug and neurologic events. Main point being it can cause seizures in dogs with or without a prior history. I opened a complaint with Zoetis and they quickly issued a full refund.


Rated 4 out of 5 stars
By Lynda on Apr 4, 2026

That it kills fleas, ticks and heartworms.

Moe is good with it. Moe is a yellow Labrador Retriever & has been taking these for over 9 years, they were separate at first, & she likes them. I'm disappointed

Moe is good with it. Moe is a yellow Labrador Retriever & has been taking these for over 9 years, they were separate at first, & she likes them. I'm disappointed that the monthly stickers, that were included before, were not in the package. The stickers I put on my calendar to show the last time I gave her the pill. They're very useful & important. I don't understand why they weren't included in the Simparica Trio box.


Rated 5 out of 5 stars
By Patricia on Mar 3, 2026

Trying to find the right med

Our dog has a very finicky stomach. I tried this product months ago but had some problems. It may have been a chicken allergy and not the medicine that was causing

Our dog has a very finicky stomach. I tried this product months ago but had some problems. It may have been a chicken allergy and not the medicine that was causing the problem. Since it worked well on our previous dog we decided to try it again and be very careful with what else he was eating. This month we seem to have success without any negative effects. Hopefully, this will be the same next month! We purchased a three month supply to test before investing in a years supply. We see no side effects at this time. It works and is easy to use.


Rated 5 out of 5 stars
By Paulina on Mar 29, 2026

Great product.

This preventative is so easy to give to my dog and she tolerates it well. I love how straightforward it is and it’s a chewable and it covers flea tick and heartworm

This preventative is so easy to give to my dog and she tolerates it well. I love how straightforward it is and it’s a chewable and it covers flea tick and heartworm from my understanding. Great option. also, really good for giving with their morning meal and that’s it once a month and all done.


Rated 5 out of 5 stars
By Kurt on Mar 22, 2026

6 years, no problems at all

Once a month treatment. Our dog doesn't even need convincing to eat the chewable treatment. We live in the deep forest where ticks and fleas are prevalent due to

Once a month treatment. Our dog doesn't even need convincing to eat the chewable treatment. We live in the deep forest where ticks and fleas are prevalent due to the number of wildlife out here. Never once has she come up with a flea or a tic and it's going on 7 years now. We'll worth it.


Rated 5 out of 5 stars
By Marion on Mar 20, 2026

She likes the taste!

After cycling through several other preventative pill for my oh so picky girl, , she actually liked the taste of this one! Apparently she has a more sophisticated

After cycling through several other preventative pill for my oh so picky girl, , she actually liked the taste of this one! Apparently she has a more sophisticated palate seeing how it is more expensive than some. But it only helps if she’s willing to take it, so I count that as a win!


Rated 5 out of 5 stars
By Bruce on Mar 17, 2026

Prompt and courteous customer service

The representative was extremely polite and took care of updating the Vet office associated with our account, ensuring the Prescription request went to the correct

The representative was extremely polite and took care of updating the Vet office associated with our account, ensuring the Prescription request went to the correct Veterinary office without any further delay. Within a week later we received the Simparica Trio for Jake. Thank you!


Rated 5 out of 5 stars
By Don on Apr 1, 2026

Very effective flea and tick med.

The ticks started early this year 2026. Apollo had 2 ticks on him. I bought Siparica Trio and 3 days later, I found another tick on him. That one was dead. Its been

The ticks started early this year 2026. Apollo had 2 ticks on him. I bought Siparica Trio and 3 days later, I found another tick on him. That one was dead. Its been 3 weeks now and he hasn't had any ticks or fleas.


Rated 5 out of 5 stars
By Gina on Mar 9, 2026

Helpful

We know its not cheap. Normally I stop at vet buy two months for $65. But I needed it sooner then later. So it was first medication purchase so discount was great

We know its not cheap. Normally I stop at vet buy two months for $65. But I needed it sooner then later. So it was first medication purchase so discount was great and additional onetime discount something through vet. So I know my fur baby has her medication and it is three month supply


Rated 3 out of 5 stars
By Jessica on Mar 4, 2026

She didn’t have gastrointestinal issues

My dog was switched to this after have multiple gastrointestinal issues with Credelio Quattro and this didn’t cause it however it did cause ataxia in her hind legs

My dog was switched to this after have multiple gastrointestinal issues with Credelio Quattro and this didn’t cause it however it did cause ataxia in her hind legs. This didn’t wear off but she won’t be getting this again. Otherwise if your dog has a sensitive tummy this one may be better for them.