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

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$139.63Autoship Price
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$146.98Chewy Price
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About This Item

Details

Your furry friend must have a current heartworm test result on file with your veterinarian in order to be prescribed heartworm medication. Please visit your veterinarian to have this test performed annually to protect your four-legged friend. Trifexis (spinosad + milbemycin oxime) is the monthly, beef-flavored tablet prescribed to kill fleas and prevent flea infestations, prevent heartworm disease, and treat and control adult hookworm, roundworm and whipworm infections in dogs. With flea medicine, heartworm preventive and intestinal parasite control in one, get the peace of mind that comes from protecting your canine companion.We directly source prescription medications from manufacturers and wholesale distributors registered with the FDA and licensed by applicable state boards. Guaranteed genuine, and where applicable, backed by the manufacturer.

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
1672 Ratings

Customers Mention

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

Ease of Use

88% Positive

Effectiveness

89% Positive

Ingredients

88% Positive

Long-Term Benefits

89% Positive

667 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 Monica on Jul 14, 2025

Delivery

I was sitting in my living room and I heard a loud thump at my door. I looked at my camera and the delivery guy stood at the bottom of my front steps and threw the

I was sitting in my living room and I heard a loud thump at my door. I looked at my camera and the delivery guy stood at the bottom of my front steps and threw the package at my door. When I got the package, it was literally dented up from being thrown so hard! Your delivery people need to do better!


Rated 5 out of 5 stars
By Pamela on Jun 16, 2025

Works with No Issues

All 5 of our Dachshunds have been taking Trifexis for years & we’ve never had a problem with fleas, ticks, or any kind of worms - most specifically, heart worms

All 5 of our Dachshunds have been taking Trifexis for years & we’ve never had a problem with fleas, ticks, or any kind of worms - most specifically, heart worms. None of our dogs have gotten sick taking this medication. We just WISH it was more COST EFFECTIVE. With 5 dogs taking it monthly, it is expensive - however - it’s competitive with others that do exactly the same.


Rated 5 out of 5 stars
By Elizabeth on Jul 13, 2025

It works

Faithfully giving my maltipoo Trifexis for eight years, I am pleased to announce that my dog, who resides with me in mosquito paradise (aka southwestern Florida),

Faithfully giving my maltipoo Trifexis for eight years, I am pleased to announce that my dog, who resides with me in mosquito paradise (aka southwestern Florida), has remained heartworm negative.


Rated 5 out of 5 stars
By Robert on Jul 10, 2025

Does What It Says

Been using this product for years. Although many dogs cannot stand the smell, once you get it down we've never experienced our dog have problems with fleas, and

Been using this product for years. Although many dogs cannot stand the smell, once you get it down we've never experienced our dog have problems with fleas, and varied worms.


Rated 5 out of 5 stars
By Crissy on Jul 6, 2025

Works quickly

Fleas started dying very quickly- probably within 30-40 minutes. I tried topical and that didn’t work. This has worked so far!

Fleas started dying very quickly- probably within 30-40 minutes. I tried topical and that didn’t work. This has worked so far!


Rated 5 out of 5 stars
By Linda on Jun 17, 2025

It works!

My little rescue dog has been using Trifexis since she arrived 7 years ago. The product works and it’s easy to use.

My little rescue dog has been using Trifexis since she arrived 7 years ago. The product works and it’s easy to use.


Rated 5 out of 5 stars
By ui on Jun 12, 2025

easiness and efficiency

It's very easy to use.. so someone like me, who can be technologically challenged it was very good and easy to use

It's very easy to use.. so someone like me, who can be technologically challenged it was very good and easy to use


Rated 5 out of 5 stars
By Hortencio on Apr 10, 2025

Convenience and quick delivery

It was very convenient to purchase refills through Chewy. Delivery was quick and received exactly what I ordered. I was also able to use a coupon for additional

It was very convenient to purchase refills through Chewy. Delivery was quick and received exactly what I ordered. I was also able to use a coupon for additional discount. I will continue to use Chewy for purchasing pet supplies.


Rated 5 out of 5 stars
By Jessica on Apr 4, 2025

Easy to undertand website, and quick shipping!

Pookie's meds were sent within a week! I am happy with the service, friendly website, and ease of use. I was able to use discounts on my order, which made her medicine

Pookie's meds were sent within a week! I am happy with the service, friendly website, and ease of use. I was able to use discounts on my order, which made her medicine a great bang for my buck! Thanks, Chewy!


Rated 5 out of 5 stars
By Julia on Apr 29, 2025

Great product to have on auto-shipment

Time and savings ($) are of great value of course, so I think adding a great service with Chewy's auto shipment is a no-brainer, especially when I'm not on top of

Time and savings ($) are of great value of course, so I think adding a great service with Chewy's auto shipment is a no-brainer, especially when I'm not on top of things.