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Dog Heartgard Chewables

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Starts $44.99 $32.39 
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Dog
01-25 lbs
26-50 lbs
51 lbs & up
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6 pack
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$35.99
$32.39
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Starts $44.99 $32.39 
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Product Info
How to Use
Ingredients
Customer Reviews
Q&A
Product Info
What is Dog Heartgard Chewables?

Heartgard Chewables are a flavored treatment for dogs given once a month to prevent heartworms. Heartgard Chewables require a prescription from your veterinarian.

Looking to also control and treat roundworms and hookworms? Use Heartgard Plus Chewables.

For:

Dogs (6 weeks of age or older and no weight requirement)

Benefits:
  • Highly effective in preventing heartworms
  • A convenient and tasty chewable for easy administration
  • Mess-free Smart Shield applicator simplifies application
  • Delicious beef flavor that most dogs will eat
How It Works:

Heartgard prevents heartworm disease by eliminating the tissue stage of heartworm larvae for a month after infection.

Studies have indicated that certain dogs of the herding breeds are more sensitive to the effects of ivermectin administered at elevated dose levels due to the MDR1 gene. For a full list of dog breeds that may be affected, click here.

Cautions:

Can cause sensitivities in herding dog breeds. It is important that you give your pet this preventative every month. If you miss more than two monthly doses, we recommend calling your vet before continuing the medication. Also, note that side effects are rare at the recommended heartworm prevention dose. Higher doses in dogs may cause tremors, dilated pupils, loss of body weight, and death. Side effects in cats include agitation, loss of appetite, staggering, dilated pupils, tremors, blindness and disorientation.

Brand Name:

Heartgard Chewable (Merial)

Generic Name:

Ivermectin

What is the most important information I should know about Heartgard Chewables:

Heartgard Chewable is a prescription medication available for dogs as beef flavored chewable tablets. The usual dose of Heartgard Chewable for dogs up to 25 pounds is 68mcg (blue box), for dogs 26-50 pounds is 136mcg (green box) and for dogs 51-100 pounds is 272mcg (brown box). The chewable tablets must be chewed and should not be swallowed whole. For dogs that normally swallow whole, the chewable tablets can be broken into pieces.

What is Heartgard Chewables:

Heartgard chewable is given once a month for the prevention of heartworm disease in dogs. It is recommended by the American Heartworm Society that heartworm prevention be used year round. Heartgard may also be used for purposes other than those listed in this guide.

What should I discuss with my veterinarian before giving Heartgard to my pet:

Tell your veterinarian if your pet has ever had an allergic reaction to Heartgard, ivermectin, or to beef.

How should this medication be given:

Give Heartgard exactly as directed by the veterinarian. If you do not understand the directions ask the pharmacist or veterinarian to explain them to you. Heartgard chewable tablets must be chewed. They should not be swallowed whole. Use with caution, Collies and other herding dog breeds have been known to have adverse reactions to ivermectin administered at elevated dose levels. Heartworm testing should be performed prior to the start of prevention therapy. If the animal is off Heartgard Chewables for 6 months or less, start the medication and test after 6 months since microfilaria, that take 6 months to mature, will result in a positive test result. Store Heartgard chewable at room temperature. Do not remove the chew from its wrapper until ready to give the medicine. Keep this medication away from children and pets. In addition, Dog Heartgard Chewables has shown a wide margin of safety at the recommended dose level in dogs including pregnant or breeding bitches, stud dogs and puppies aged 6 or more weeks.

What happens if I miss giving a dose:

Give the missed dose as soon as you remember. Do not give a double dose of the medication.

What happens if I overdose the pet:

Seek emergency veterinary medical treatment. Symptoms of overdose may include vomiting, diarrhea and lack of coordination in dogs.

What should I avoid while giving Heartgard to my pet:

To help with compliance and not missing a monthly dose, use the handy red heart reminder stickers included with the medication.

What are the possible side effects of Heartgard:

Side effects of Heartgard are rare at the recommended heartworm prevention dose. Higher doses in dogs may cause tremors, dilated pupils, and loss of body weight and death.

What other drugs will affect Heartgard:

Do not give Heartgard to your pet if already taking another heartworm medication.

Where can I get more information:

Your pharmacist has additional information about Heartgard written for health professionals that you may read.

How to Use
Directions:
  • Dog Heartgard Chewables are a once-a-month chewable tablet available by prescription for the prevention of heartworm disease in dogs.
  • It is recommended by the American Heartworm Society that heartworm prevention be given year-round.
Tip:

Do not remove the chew from its wrapper until ready to give. Dog Heartgard Chewables must be chewed. They should not be swallowed whole. For dogs that normally swallow whole, the chewable tablet can be broken into pieces. Do not give a double dose of the medication.

Dosage:
Dogs:
Weight
Dosage
Dogs Up to 25 lbs
Give 1 chewable tablet (68mcg-blue box) once a month
26-50 lbs
Give 1 chewable tablet (136mcg-green box) once a month
51-100 lbs
Give 1 chewable tablet (272mcg-brown box) once a month
Over 100 lbs
Give the appropriate combination of chewable tablets once a month
Cats
Do not use!
Horses
Do not use!
Storage:

Store this product at room temperature. Keep out of reach of children.

Ingredients
Heartgard Blue Chewables (for Dogs 1-25 lbs):
Active Ingredient (per tablet)
Amount
Ivermectin
68 mcg
Heartgard Green Chewables (for Dogs 26-50 lbs):
Active Ingredient (per tablet)
Amount
Ivermectin
136 mcg
Heartgard Brown Chewables (for Dogs 51-100 lbs):
Active Ingredient (per tablet)
Amount
Ivermectin
272 mcg
Customer Reviews
Dog Heartgard Chewables is rated 4.733333333333333 out of 5 by 90.
Rated 5 out of 5 by from 1800PETMEDS IS THE BEST! I am so happy with the fantastic customer service at 1800 PET MEDS, you have a loyal customer. I got my order much sooner than expected and am very grateful. I am really rating 1800PET MEDS not this product. Frankly I wish I didn't need to give this to my dog!
Date published: 2016-06-22
Rated 5 out of 5 by from Great for my pup! We have used heartgard since Wylie was born. He is doing great and loves the way Heartgard tastes!
Date published: 2016-03-08
Rated 5 out of 5 by from Great product I bought this last year and again this year. Only place I could find that sells the Heartguard without the Plus! I don't like given them extra chemicals n the plain Heartguard is the answer! Thank you!
Date published: 2016-03-02
Rated 5 out of 5 by from So convenient! I love Pet Meds because you were able to change an eye salve my dog needed for severe dry eyes into a drop-now I don't worry about scratching her eye.
Date published: 2016-02-09
Rated 5 out of 5 by from Drastically easier than treating heartworm When I adopted Sam from the animal shelter, they told me he had heartworm. I had sorta heard about it before, but just assumed he needed some Heartgard pills, and he'd be fine. I was very wrong. The treatment involves 2 painful shots given 24 hours apart to administer Immiticide, which he tolerated better than I expected, which is to say he was only miserable for 12+ hours after each injection. Following these injections, my dog had to be kept on cage rest for about 8 WEEKS. That's two months were my dog was only allowed outside briefly to relieve himself 2-3 times a day. Otherwise, he spent two months of his life in a cage because of the risk of the dead heartworms causing a pulmonary embolism. He still has to go back to the clinic in another month to get checked to make sure the heartworm is actually gone. These are once-a-month, beef flavored chewable tablets. They cost less than $10/month, even for large dogs. The Immiticide treatment can cost north of $600 (fortunately, the animal shelter covered the cost of Sam's treatment). They are highly effective and very safe. Do yourself and your pet a huge favor, and treat them.
Date published: 2016-01-29
Rated 5 out of 5 by from Rescued! Before using this product my dogs hated taking their medicine. Now all 6 (from 20lbs to 100 lbs) run to get it. It's more like a treat than a pill. No wrapping it in cheese. Definitely recommend this product for all ages and sizes from puppies to seniors.
Date published: 2015-12-05
Rated 4 out of 5 by from Should make a simple pill Don't get me wrong, I use the regular Heartgard chewables on my 2 dogs, but I really really wish they would make the product in a simple pill (not a chewable). I would rather a simple pill with just the active ingredient alone instead of the "treat" type composition with all the additives needed to get it into this form.
Date published: 2015-07-01
Rated 5 out of 5 by from Excellent!! Dog loves them. Easy to give. Perfect.
Date published: 2015-06-19
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Q&A

My dog is in between weight recommendations?

My dog is 25.4 lbs. Do I go with the up to 25 lb. size or 26-50 size. I'd rather not overmedicate if not necessary.
Asked by: OBSummer
I would check with your vet to find out his/her recommendation depending upon your dog's individual status. My vet would consider a dog's environment and risk of infection, age, and any other medical conditions in determining which strength Heartgard a dog should take when they are borderline.
Answered by: SuzyCVT
Date published: 2016-01-20

Will nexguard plus kill mosquito

Asked by: Joanjet
Nexguard is not labeled as killing mosquitoes. If you are thinking of using it instead of a heartworm prevention, even if it DID kill mosquitoes, the mosquito will still need to bite the dog, therefore is still able to transmit the heartworm larva. Heartworm preventions actually kill the larval stage of the heartworm after the mosquito has bitten.
Answered by: SuzyCVT
Date published: 2015-08-29

My dog's weight goes between 49-52 lbs, depending on the day. Which pack should I get him?

Asked by: jess
The dose will ultimately be up to your veterinarian. It really depends on his current weight and how often he tends to go over 50 pounds. If he is borderline, at 50 pounds, some vets will go with the higher dose just to be on the safe side.
Answered by: Kelly P
Date published: 2015-07-14

if my dog already has heartworms can I still give him the heartguard chewables

Asked by: silkie
my dog is a two year-old boxer female. And gave her heartworm medicine to last year. She just recently tested positive for heartworm. Question is can I give her this heartworm med?
Answered by: Rich
Date published: 2015-07-10

Pregnancy, heartguard

My dog is expecting puppies Can I still continue to give heartguard plus to her Is it dommageable for the puppies
Asked by: Helshe
Heartgard Plus has shown a wide margin of safety at the recommended dose level in dogs including pregnant or breeding dogs, however it is best to discuss this with your veterinarian before giving to a pregnant dog.
Answered by: Kelly P
Date published: 2015-05-13

We have Cat Heartgard left after our cat died. Can we use it on our dog?

Asked by: arrow
No, we cannot recommend that you give that to your dog.
Answered by: Kelly P
Date published: 2015-05-12

how can i order with a pres

Asked by: ellie
Please contact our Customer Care department at 800-738-6337 to place an order or go online at 1800petmeds.com
Answered by: Lilli Pharmacist
Date published: 2015-04-20

What happens if your dog eats more than whats required?

My dog weighs about 70 lbs and she got a hold of the heartworm package. There were about 4 or 5 pills left in there and she ate all of them.
Asked by: Stephanie
Seek emergency veterinary medical treatment. Symptoms of overdose may include vomiting, diarrhea and incoordination in dogs.
Answered by: Cheryl-Pharmacist
Date published: 2014-11-18
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