Tri-Heart Plus Chewable Tablet for Dogs, up to 25 lbs, (Blue Box)
Prescription Item
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For use in animals only. 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.
UsesTri-Heart Plus is a monthly chew indicated to kill heartworm larvae and to control/treat adult hookworms and roundworms.
Possible Side EffectsTri-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 InteractionsTalk 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 Box | Weight Range | Strength | Dosage | Product Page |
|---|---|---|---|---|
| Blue | Up to 25 lbs | 68 mcg Ivermectin & 57 mg Pyrantel | Administer orally once a month | ✓-Click Here |
| Green | 26-50 lbs | 136 mcg Ivermectin & 114 mg Pyrantel | Administer orally once a month | ✓-Click Here |
| Brown | 51-100 lbs | 272 mcg Ivermectin & 227 mg Pyrantel | Administer orally once a month | ✓-Click Here |
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Item Number146097
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Common Brand Name(s)Tri-Heart Plus, Heartgard Plus
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For Use WithDogs
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Generic NameIvermectin, Pyrantel Pamoate
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Administration FormOral
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LifestagePuppy, Adult, Senior
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Breed SizeExtra Small & Toy Breeds, Small Breeds
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Product FormChewable Tablet
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Strength68 mcg Ivermectin and 57 mg Pyrantel
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Health ConditionHeartworms, Hookworms, Roundworms
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Drug TypeParasiticide
Active Ingredients: 68 mcg Ivermectin and 57 mg Pyrantel.
Tri-Heart Plus can be fed every 30 days or based on your veterinarian's recommendation. They should be chewed, or you can mix them with a small amount of your dog's usual food.
Storage InstructionsStore at controlled room temperatures of 59° - 86°F. Protect product from light.
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.
Customer Reviews
96% Recommend
96% of reviewersrecommend this product
You've Already Reviewed This Item
213 Reviews
Showing 1-10 of 213 Reviews
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GOOD & AFFORDABLE!
By maplaver on Sep 12, 2021
I love this brand of heartworm prevention meds because they provide the same care as more expensive brands without costing so very much. Will definitely keep using this for my 2 dogs!
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Great price and it works!
By Casinod726 on Jul 17, 2021
We bought this for our puppy and she is doing well on it. Great prices and excellent service from Chewy made for a terrific experience. Chewy contacted the vet and handled everything! Thank you Chewy!
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great product
By Heartworm on Aug 1, 2021
My dog likes it. He hates any type of medicine, but this one he actually likes. Chewy makes it super convenient by calling my vet directly and auto shipment.
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good product/price
By SnugglesMom on May 1, 2021
I can only assume the product works, the dogs are always on a heartworm guard product, and always test negative for heartworm. They will take the Tri-Heart, because there's competition for treats. They prefer HeartGard chew for taste, my smallest dog isn't as thrilled to receive this "treat" but he does take it. Much better price vs HeartGuard, and with 5 dogs I appreciate the savings while still providing them with heartworm protection. If you have a picky pup, I'd suggest HeartGard. It is vital to keep animals on heartworm product. I worked with rescues, it was sad the amount of positive heartworm animals in shelters, when the vicious worms can be so easily and affordably prevented. I can only assume the product works, the dogs are always on a heartworm guard product, and always test negative for heartworm. They will take the Tri-Heart, because there's competition for treats. They prefer HeartGard chew for taste, my smallest dog isn't as thrilled to receive this "treat" but he does take it. Much better price vs HeartGuard, and with 5 dogs I appreciate the savings while still providing them with heartworm protection. If you have a picky pup, I'd suggest HeartGard. It is vital to keep animals on heartworm product. I worked with rescues, it was sad the amount of positive heartworm animals in shelters, when the vicious worms can be so easily and affordably prevented. … more
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Too big for our dog
By Jilly on Jul 7, 2021
Would not recommend this product. Even though the tablets are chewable they are way to big for our 12lb dog . The tablets for our 4lb pup are just as large. Waste of $ they wont eat
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Great Price
By Jillie on Aug 3, 2021
This product works, my dog is happy with the taste, and the price is fantastic. Thanks Chewy for saving me money on pet necessities.
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Must taste good.
By John on Jun 4, 2021
I cannot tell you if it is working but my dog does not have HW. She does take it and eat it like a treat so I don't have to hide it in a treat. Chewy's customer service has been nothing but great though and that makes the purchasing experience very positive.
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Does its job!
By Vvvv on Jun 5, 2021 top1000Contributor
I give this to my 10-year-old male Pomeranian once a month. He eats it like it is a treat, but he is also not a particularly picky dog, haha. I'm glad it's so easy to give to him, though! So far, he has never tested heartworm positive.
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Big but chewable tablet
By Larry on Jun 19, 2021
These are comparable to heart guard and seem to work as well. The tablet is pretty big for my small dog but I break it in half and he chews it up without a pill pocket so that’s a plus!
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Same as Trifexus but better taste and lower price
By SuwanneeGal on Mar 25, 2021
Now that I have a second dog I needed a cheaper alternative for heart worm/flea meds than Trifexis so I spent an afternoon looking through reviews, reading ingredients labels etc. I found these Tri-Heart plus for the heartworm and Nexguard for flea control. Exact same active ingredients, but waaay cheaper. My 2 dogs are both 25 lbs. On the tri-heart I got the small dog size, but on the Nexguard I got the 25-60 lb size, so I'm cutting those in half. There's a total mg amount and the dosage per pound of body weight right on the front of the boxes, and you can calculate that half a pill is still more dose than my gals need. So far, the protection has been just as good as with the Trifexis. Next Now that I have a second dog I needed a cheaper alternative for heart worm/flea meds than Trifexis so I spent an afternoon looking through reviews, reading ingredients labels etc. I found these Tri-Heart plus for the heartworm and Nexguard for flea control. Exact same active ingredients, but waaay cheaper. My 2 dogs are both 25 lbs. On the tri-heart I got the small dog size, but on the Nexguard I got the 25-60 lb size, so I'm cutting those in half. There's a total mg amount and the dosage per pound of body weight right on the front of the boxes, and you can calculate that half a pill is still more dose than my gals need. So far, the protection has been just as good as with the Trifexis. Next time I plan to buy the bigger size of Tri-Heart plus too. Also, I've always had to hide the Trifexis inside cheese or hot dog to get them to eat it, and even then one dog spits it out if she tastes the pill at all, but she gobbled down the Tri-HEart Plus just like it was a bonz. … more
