Tri-Heart Plus Chewable Tablet for Dogs, 26-50 lbs, (Green Box), slide 1 of 1

Tri-Heart Plus Chewable Tablet for Dogs, 26-50 lbs, (Green Box), 6 Chewable Tablets (6-mos. supply)

Prescription Item

  • List Price:

    $39.30

  • Price:

    $27.99 FREE Shipping over $49

  • You Save:

    $11.31 (29%)

In stock

This item requires prescription approval. Details

Medications ship separately. Delivery times may vary. Details

We'll collect your pet's prescription information at Checkout.

cw-icon-heart Created with Sketch. Add to Favorites
Description

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. Tri-Heart Plus is an easy-to-feed chewable tablet prescribed to help keep your dog free of heartworm and other dangerous parasites. When given monthly, this simple and palatable tablet helps to protect your pet by killing the larvae before they reach your dog's heart. Best of all, the tasty tablets can be fed just like a treat! Your pet won't even know you're working to protect their heart.

Uses

Tri-Heart Plus is a monthly chew indicated to kill heartworm larvae and to control/treat adult hookworms and roundworms.

Possible Side Effects

Tri-Heart Plus is safe and has caused no side-effects in most dogs, but upset stomachs have been reported. Incoordination, convulsions, or drooling have also been reported rarely. Always contact your veterinarian if your pet appears sick or behaves strangely after taking Tri-Heart Plus.

Drug & Food Interactions

Talk to your veterinarian about any other drugs your dog is taking before starting Tri-Heart Plus.

Precautions

All dogs should be tested for existing heartworm infection before starting treatment with Tri-Heart Plus, which is not effective against adult D. immitis. Infected dogs must be treated to remove adult heartworms and microfilariae before initiating a program. Tri-Heart Plus is not indicated for dogs younger than 6 weeks old. Herding breeds (such as Collies) can be sensitive to the active ingredient, so talk to your veterinarian if your dog may be affected. If you miss a dose, your dog needs a blood test to resume your normal doses safely. Notify your veterinarian if you've skipped a dose or have any concerns. Keep this and all drugs out of the reach of children.

This item is excluded from the first-time Autoship promotion.

Dosage Chart

Color on BoxWeight RangeStrengthDosageProduct Page
BlueUp to 25 lbs68 mcg Ivermectin & 57 mg PyrantelAdminister orally once a month✓-Click Here
Green26-50 lbs136 mcg Ivermectin & 114 mg PyrantelAdminister orally once a month✓-Click Here
Brown51-100 lbs272 mcg Ivermectin & 227 mg PyrantelAdminister orally once a month✓-Click Here
  1. Prescribing Information

See all items by Tri-Heart Plus

  • Item Number
    146099
  • Common Brand Name(s)
    Tri-Heart Plus, Heartgard Plus
  • For Use With
    Dogs
  • Generic Name
    Ivermectin, Pyrantel Pamoate
  • Administration Form
    Oral
  • Brand
    Merck
  • Lifestage
    Adult, Senior, Puppy
  • Breed Size
    Medium Breeds
  • Product Form
    Chewable Tablet
  • Strength
    136 mcg Ivermectin and 114 mg Pyrantel
  • Health Condition
    Heartworms, Hookworms, Roundworms
  • Drug Type
    Parasiticide
Ingredients
Ingredients

Active Ingredients: 136 mcg Ivermectin and 114 mg Pyrantel.

Instructions
Recommended Dosage

1 chew

Storage Instructions

Store at controlled room temperature of 59° - 86°F. Protect product from light.

FAQ

Is Tri-Heart Plus safe for my dog?

Tri-Heart Plus flavored chewable tablets are an FDA-licensed product, indicating they are safe and effective when used as recommended on the label. All dogs should be tested for existing heartworm infection before starting treatment with Tri-Heart Plus.

My dog is taking some other medications for another condition. Is it still safe to give her Tri-Heart Plus tablets?

In clinical trials, many commonly used flea collars, dips, shampoos, anthelmintics (deworming medications), antibiotics, vaccines and steroid preparations have been administered with ivermectin/pyrantel in a heartworm disease prevention program. For questions about specific medications, please consult your veterinarian.

Is it okay to give my pregnant dog Tri-Heart Plus tablets? What about after she has given birth and is breastfeeding the puppies?

Ivermectin/pyrantel, the active ingredients in Tri-Heart Plus, have a wide margin of safety at the recommended dose level in dogs, including pregnant females, breeding males and females, and puppies 6 weeks or older, according to the package insert.

Can Tri-Heart Plus tablets be given to a dog that has heartworms or that is heartworm-positive?

No. Tri-Heart Plus is labeled for use in dogs to prevent heartworm disease and not for the treatment of heartworm infections. The package insert contains this precautionary statement: “Infected dogs must be treated to remove adult heartworms and microfilariae before initiating a program with Tri-Heart Plus flavored chewable tablets.”

Can Tri-Heart Plus be used as a heartworm preventive in cats?

No. Tri-Heart Plus is not approved for use in cats.

Our dog's Tri-Heart Plus flavored chewable tablets expired last month. Is it still okay to give her Tri-Heart Plus tablets after their expiration date?

Medications, including Tri-Heart Plus, should never be administered after the expiration date. Studies have shown that Tri-Heart Plus will maintain its desired effectiveness when administered prior to the expiration date, when stored as recommended on the label.

My dog weighs less than 10 lbs. Should I give him the whole tablet even though it says for dogs up to 25 lbs?

Yes. The entire tablet should be administered as a single dose once each month. The smallest-sized Tri-Heart Plus tablet, in the blue-colored packaging, is labeled for dogs weighing 25 lbs or less. These tablets are scored to make it easier to break the tablet apart and have the small dog take the complete tablet but in smaller pieces at a time. Regardless of whether the tablet is broken apart or given the whole, the entire tablet should be given as a single dose.

Is it okay to give my pregnant dog Tri-Heart Plus tablets? What about after she has given birth and is breastfeeding the puppies?

Ivermectin/Pyrantel, the active ingredients in Tri-Heart Plus, have a wide margin of safety at the recommended dose level in dogs, including pregnant females, breeding males and females, and puppies 6 weeks old or more according to the package insert.

I accidentally gave my dog his Tri-Heart Plus tablet after my husband had already given one to him. Will he be okay?

Contact your veterinarian immediately if accidental overdose occurs. To reduce the risk of accidental overdose in situations where more than one person may administer Tri-Heart Plus, we suggest ticking off the date on a specially marked calendar or making some other note to indicate that the dose has been given. Make a habit of checking with the other pet caregivers in your household before giving any medications to your pet.

My dog is taking some other medications for another condition. Is it still safe to give her Tri-Heart Plus tablets?

In clinical trials, many commonly used flea collars, dips, shampoos, anthelmintics (deworming medications), antibiotics, vaccines, and steroid preparations have been administered with ivermectin/pyrantel in a heartworm disease preventive program. For questions on specific medications, please consult with your veterinarian.

I forgot to give my dog his Tri-Heart Plus medication last month. Is he still protected? What should I do?

If the interval between doses exceeds 30 days, the efficacy of ivermectin can be reduced. Therefore, for optimal performance, the chewable tablet must be given once a month, on or about the same day of the month (Sign up for our email reminder service). If treatment is delayed, whether by a few days or many, please contact your veterinarian, as immediate treatment with Tri-Heart Plus chewable tablets and resumption of the recommended dosing regimen minimizes the opportunity for the development of adult heartworms.

Where can I buy Tri-Heart Plus tablets?

Tri-Heart Plus flavored chewable tablets can be obtained by prescription only and are available from your veterinarian.

Is Tri-Heart Plus safe for my dog?

Tri-Heart Plus flavored chewable tablets are an FDA-licensed product, indicating that they are safe and effective when used as recommended on the label. All dogs should be tested for existing heartworm infection before starting treatment with Tri-Heart Plus.

How long will the Tri-Heart Plus tablets last once removed from the blister pack?

The blister package is designed to protect the tablets from exposure to air and light. Therefore a tablet should be administered at the time it is removed from the blister foil. Also if the blister or foil is not intact (for example the foil is peeled back or there's a hole in it), the tablet should not be used.

Do Tri-Heart Plus tablets contain wheat or rice gluten?

No.

Where can I find additional information about heartworms?

The American Heartworm Society (AHS) is an excellent source of information for both pet owners and veterinarians.

Rating: 4.7 of 5 stars 101 Reviews 101 Reviews 4.8 out of 5 Stars

98% Recommend

98% of reviewersrecommend this product

Rating: 4.7 of 5 stars 4.8 / 5

You've Already Reviewed This Item

101 Reviews

Showing 1-10 of 101 Reviews

  • 5 out of 5 stars

    Great Price

    By River on Feb 18, 2021

    This product is a GREAT price! Makes taking care of my dogs so much cheaper. They eat it no issues, so I assume it works just fine? I dont' really know ive used it for several months....maybe year and its all been fine.

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Awesome inexpensive choice!

    By MowgliMama on Jan 17, 2021

    I have been using this product for the past year for my 40 pound pup. He loves the taste and we haven't experienced any issues thus far. I would recommend this to anyone!

    You liked it! Something went wrong. Please try again later. Report
  • 1 out of 5 stars

    Dog Won't Eat It

    By DTMartin on Nov 5, 2020

    My dog absolutely refuses to eat these. It's so strange because I've never had a dog refuse a HW med, since they are flavored. I've tried to cut it up and smash it, hide it in peanut butter, cheese, even a cut of raw venison! She absolutely won't touch it.... Even my other dog (who eats EVERYTHING) wouldn't touch the meat she left on the floor.

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Extremely convenient

    By BobL on Jan 15, 2021

    Ordered heartworm pills for my two dogs and not only are the prices great but the whole process is convenient and assuring.

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Always get these

    By Shauna on Nov 25, 2020

    Dog eats them, and they're way cheaper than the "name brand." I will say these are more the "tab" type treat so if your dog isn't fooled by those you may want to go for the name brand with the

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Easy to feed!

    By Becky on Nov 18, 2020

    My dogs have no problem gobbling up this "treat" and not thinking it's medicine. With same ingredients as brand name, I'm happy with the price on this for their preventatives!

    You liked it! Something went wrong. Please try again later. Report
  • 3 out of 5 stars

    Heartworm med

    By Dignity on Feb 2, 2021

    This product is good. I only wish that it truly was chewable.

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Works great

    By yamotl9 on Sep 16, 2020

    Love that there's a more affordable option for these pills, these are great. My dog thinks it's a treat and chews it right up! They are incredibly hard to break into smaller pieces just beware! I'm lucky my dog chews...

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Heartworm chews

    By Indie on Jan 30, 2021

    Have used this product successfully for a long time.

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Love the delivery

    By MayPuppy on Aug 15, 2020

    This is the heartworm medication my vet has been prescribing to my dog. It's a good product. The price at Chewy is the same as my vets office. I liked ordering from Chewy because of the delivery. Especially during covid it's nice to have items delivered to save you a trip out of the house.

    You liked it! Something went wrong. Please try again later. Report