Trifexis Chewable Tablet for Dogs, 10.1-20 lbs, (Orange Box), 6 Chewable Tablets (6-mos. supply)

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About This Item

Details

  • Trifexis delivers 5-in-1 protection from heartworms, fleas & 3 more intestinal parasites in dogs 5 to 10 lbs.
  • In a well-controlled laboratory study, Trifexis started to kill fleas in 30 minutes and demonstrated 100% effectiveness within 4 hours.
  • Prevents heartworm disease and treats & controls roundworm, hookworm & whipworm infections.
  • Beef-flavored tablets for easy dosing
  • Protecting dogs from parasites for nearly 10 years, 272 million doses distributed (Elanco Animal Health, data on file)

Ingredients

Instructions

FAQ

Learn More About Trifexis From Our Team of Experts

About Trifexis

Dosed By Weight

Trifexis comes in five different strengths to provide custom-tailored dosing for a wide range of dogs. Just one tablet provides the correct amount your pup needs to protect him for a whole month from 5 different types of parasites. Trifexis works for dogs 8 weeks and older, with dosing for dogs from 5 pounds to 120 pounds—and beyond!
Dogs 5 to 10 lbs, 140mg. Dogs 10.1 to 20 lbs, 270mg. Dogs 20.1 to 40 lbs, 560mg. Dogs 40.1 to 60 lbs, 810mg. Dogs 60.1 to 120 lbs, 1620mg. Dogs more than 120 lbs, administer the appropriate combination of tablets.

5 - 10 LBS
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10.1 - 20 LBS
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20.1 - 40 LBS
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40.1 - 60 LBS
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60.1 - 120 LBS
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Indication

Trifexis prevents heartworm disease. Trifexis kills fleas and prevents flea infestations, and treats and controls adult hookworm, roundworm and whipworm infections in dogs and puppies 8 weeks and older and 5 pounds or more.

Important Safety Information

The use of ivermectin at higher than FDA-approved doses at the same time as Trifexis can result in serious side effects. Treatment with fewer than three monthly doses after the last exposure to mosquitoes may not provide complete heartworm prevention. Prior to administration of Trifexis, dogs should be tested for existing heartworm infection. Use with caution in breeding females. The safe use of Trifexis in breeding males has not been evaluated. Use with caution in dogs with pre-existing epilepsy. The most common adverse reactions reported are vomiting, decreased activity, itching, decreased appetite, and diarrhea. To ensure heartworm prevention, observe your dog for one hour after administration. If vomiting occurs within an hour of administration, redose with another full dose. Puppies less than 14 weeks of age may experience a higher rate of vomiting. For complete safety information, please see Trifexis product label or ask your veterinarian.
Trifexis Product Label

About Trifexis

Trifexis is a once-a-month, beef-flavored tablet that provides broad protection against a range of parasites. It kills fleas, prevents flea infestations, prevents heartworm disease, and treats and controls adult hookworm, roundworm, and whipworm infections. Protect your dog with convenient parasite protection that lasts all month long.
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4.7
Rated 4.7 out of 5 stars
1954 Ratings

Customers Mention

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

Ease of Use

89% Positive

Effectiveness

90% Positive

Ingredients

89% Positive

Long-Term Benefits

90% Positive

770 Customer Reviews



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

Rated 5 out of 5 stars
By Ga Peach on Oct 22, 2025

Unbelievable Customer Service

The carrier lost our package. They weren't helpful at all but the folks at Chewy were absolutely awesome! They were friendly and prompt. They managed to track package

The carrier lost our package. They weren't helpful at all but the folks at Chewy were absolutely awesome! They were friendly and prompt. They managed to track package down and followed up with us until they were sure everything was okay. Of course the Trifexis is great. My little guys have been taking it for years but having the security of getting it from great folks like Chewy makes it even better.


Rated 4 out of 5 stars
By Deborah on Oct 31, 2025

Quick Delivery

The product works as prescribed and Chewy delivers quickly once I finally mail in the Rx (I’m the slow poke). I’d give 5 stars but it’s so pricey. I appreciate the

The product works as prescribed and Chewy delivers quickly once I finally mail in the Rx (I’m the slow poke). I’d give 5 stars but it’s so pricey. I appreciate the discount Chewy offers when I haven’t ordered from them for a few months.


Rated 5 out of 5 stars
By Erin on Oct 12, 2025

Love this product!

I love that I give my dog one pill for fleas & heart worms. I also love that there is no greasy yuck on my dogs back that I could put my hands in.I have had 3 dogs

I love that I give my dog one pill for fleas & heart worms. I also love that there is no greasy yuck on my dogs back that I could put my hands in.I have had 3 dogs on this & they have never had fleas & never had heart worms which is the most important thing, but also Trifexis does not charge a fortune for a great product.


Rated 5 out of 5 stars
By CAROLE on Oct 29, 2025

FLEAS BE GONE

Daisy is my new companion. She replaced the four-legged love of my life, Maddy, who was with me for 16 years. I use Trifexis because I know it works, as it always

Daisy is my new companion. She replaced the four-legged love of my life, Maddy, who was with me for 16 years. I use Trifexis because I know it works, as it always had done in the past. It just doesn't get any better than that.


Rated 5 out of 5 stars
By Carol on Dec 3, 2025

Quick delivery

Did not like that the manufacturer no longer includes reminder stickers to place on calendar for when to give Sassi monthly trifexis!!

Did not like that the manufacturer no longer includes reminder stickers to place on calendar for when to give Sassi monthly trifexis!!


Rated 5 out of 5 stars
By Donna on Nov 16, 2025

Convenience

Sweet pea was a rescue found on the street and when I had brought her to the vet, which was about nine years ago, they recommended this product

Sweet pea was a rescue found on the street and when I had brought her to the vet, which was about nine years ago, they recommended this product


Rated 5 out of 5 stars
By Jim on Dec 1, 2025

Pet Presciption Medication

Chewy made it exceptionally easy to obtain prescription heart medicine prescribed by our veterinarian for our dog, Tripp.

Chewy made it exceptionally easy to obtain prescription heart medicine prescribed by our veterinarian for our dog, Tripp.


Rated 5 out of 5 stars
By Yadira on Jan 18, 2026

For 13 years my dog is being taken this medicine and I trust the product

As long the medicine is taking with a full stomach, is well tolerated

As long the medicine is taking with a full stomach, is well tolerated


Rated 5 out of 5 stars
By Nancy on Dec 6, 2025

Fast, Efficient Service and Delivery

I love that you are able to reach out to my veterinarian for approval. It saves me the time and effort.

I love that you are able to reach out to my veterinarian for approval. It saves me the time and effort.


Rated 5 out of 5 stars
By Cheryl on Jan 13, 2026

The product is very good

The product was delivered on time and efficiently. We are regular users.

The product was delivered on time and efficiently. We are regular users.