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Heartgard Plus for Large Dogs 51-100lbs (Brown)

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4.8/5 (312 Reviews)
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  • Information
  • Directions
  • Safety
  • Benefits
  • Heartgard Plus FAQ
Information
Heartgard Plus
  • Pet
    Dog
  • Treatment For
    Heartworms
  • Health Benefits
    Internal Parasite Protection
  • Product Type
    Chewable Tablet
  • Parasites Covered
    Heartworms, Intestinal worms
  • Protects For
    One month
  • Recommended For
    6 weeks and older puppies
  • Key Ingredients
    Ivermectin, Pyrantel Pamoate

Heartgard Plus Brown for Large Dogs 51-100 lbs

Heartgard Plus Brown for Large Dogs is a multi-worming protection for 6 weeks and older puppies and dogs that weigh between 51-100 lbs. It is a palatable flavored composition that most dogs find hard to resist. Heartgard Plus prevents heartworm disease by terminating the tissue stages of heartworm larvae (Dirofilaria immitis) for one month post-infection. Plus, the tasty chewable treats and controls roundworms (Toxocara canis, Toxascaris leonina) and hookworms (Ancylostoma caninum, Uncinaria stenocephala, and Ancylostoma braziliense).Heartgard Plus for Large Dogs is available in 6 chews and 12 chews pack sizes.

Heartgard Plus for large dogs is a vet-recommended formula that provides non-stop protection against a variety of worms for a complete month. The oral treatment effectively prevents heartworm disease and at the same time, treats and controls intestinal worms such as hookworms and roundworms.

Heartgard Plus for Large Dogs 51-100lbs Heartworm & Gastrointestinal Worm Treatment

  • Multi-worming treatment for 6 weeks and older puppies and dogs
  • Suitable for 51-100lbs weight-sized dogs
  • Easy-to-administer chewable formula
  • Palatable taste, loved by most dogs
  • Prevents heartworm disease
  • Eliminates tissue stages of heartworm larvae
  • Treats and controls roundworms and hookworms
  • Long-lasting treatment that protects for a complete month
  • Safe to use on pregnant and breeding dogs

Heartgard Plus Chewable Large Dogs Ingredients

Heartgard Plus for Large Dogs 51-100 lbs heartworm and intestinal worm treatment is a blend of ivermectin and pyrantel. Ivermectin kills heartworm larvae (Dirofilaria immitis), and thus stops larvae from growing and developing into adult heartworms, and thus prevents heartworm disease. Pyrantel, on the other hand treats and controls intestinal worms including roundworms (Toxocara canis, Toxascaris leonina), and hookworms ((Ancylostoma caninum, Uncinaria stenocephala, and Ancylostoma braziliense).

Directions
How to Use Heartgard Plus for Dogs

Heartgard Plus tablets are chewable, so very easy to administer.  Just offer one tablet every month by hand (whole or broken) or alternatively mix it with the dog food. Only make sure your dog chews the tablet and does not swallow it. 

Heartgard Plus Dosage as Per Weight

Safety
  • Get your dog tested for heartworm disease before starting heartworm prevention program.
  • Should be administered monthly on the same date each month. If you miss a dose by several days, resume a monthly dosing schedule from a fresh date.
  • Do not use on puppies less than 6 weeks of age.
  • Some dogs, especially Collies and other herding breeds are more sensitive to ivermectin if given an overdose.
  • Side effects are rare but may include vomiting, diarrhea and drooling, especially in case of overdose. Consult your vet if signs persist.  

Caution:Collies including Border Collies and other breeds are sensitive to Ivermectin. Please consult your vet before giving this treatment or look for alternatives to Ivermectin for the treatment of parasites.

Benefits

Heartgard Plus: Key Takeaways

  • An effective heartworm treatment for multiple parasites
  • Prevents heartworm disease in dogs
  • Treats and controls intestinal worms including hookworms and roundworms
  • Palatable tablet easy to administer
  • Once a month treatment
Heartgard Plus FAQ

What is Heartgard Plus?

Heartgard Plus is a beef-flavored chewable for puppies and dogs. It prevents heartworm disease and provides protection against intestinal worms including roundworms and hookworms, for 30 days.

I have 3 different dog breeds. Can I use Heartgard Plus on all of them?

Yes, you can use Heartgard Plus on all dog breeds as the chewable is not known to cause any adverse reactions to any dog breed.

How long should I wait before administering the next dose of Heartgard Plus?

Heartgard Plus is a monthly treatment for heartworms and intestinal worms. For year-round protection, Heartgard Plus should be given to dogs once every month.

Can I take my dog for a bath or for swimming after giving him Heartgard Plus?

Heartgard Plus is an oral treatment for dogs. Unlike topical solutions, Heartgard Plus needs to be given by mouth. So, your canine can go for a bath or swimming right after having Heartgard Plus.

At what age should I start giving my puppy Heartgard Plus?

Heartgard Plus is safe to use on 6 weeks and older puppies and dogs. So, you can start giving Heartgard Plus to your puppies from 6 weeks of age. Ensure that your dog is tested for any existing heartworm infection before starting with the treatment.

Is Heartgard Plus effective in heartworm prevention?

Heartgard Plus is the #1 vet-recommended heartworm preventive treatment for dogs. A single dose of Heartgard Plus prevents heartworm disease and treats and controls various intestinal worm infections including roundworms and hookworms, for the entire month.

What is the right method of giving Heartgard Plus?

Heartgard Plus is a monthly chewable treatment that can be offered directly to your dog's mouth for chewing. Alternatively, Heartgard Plus may be added to a small amount of dog food.

Do I need to treat all of my dogs for heartworms?

A single bite from an infected mosquito is capable of transmitting heartworm disease to your canine, so the risk of heartworm disease is real. This is why it is imperative to treat all your dogs with heartworm preventive all year around to prevent the infection.

What happens if I miss a dose of Heartgard Plus?

If you miss giving your dog Heartgard Plus, give a chew as soon as you recall and resume with a monthly dosing schedule from the following month.

Will my dog take Heartgard Plus?

Dogs love real beef flavor. Heartgard Plus offers a delicious beef-flavor which makes it a #1 dog-preferred chew making the administration easy and effective.

Is Heartgard Plus safe?

Heartgard Plus is recommended for use on 6 weeks and older puppies and dogs of all breeds and sizes. The chewable formula is safe for pregnant or breeding canines and stud dogs.

Heartgard Plus Reviews

4.8
Average Rating 4.8 Based on 312 Reviews
  • 5 star
     267
  • 4 star
     41
  • 3 star
     2
  • 2 star
     0
  • 1 star
     2
85%
Recommend
85% of Reviewers Recommend This Product
Write A Review
4.8/5
Average Rating 4.8
Based on 312 Reviews
Peace of Mind Every Month Aug 22, 2025
Keeps heartworm worries away while also tackling roundworms and hookworms. Easy to give, my pup thinks it’s a treat.
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Peace of Mind Every Month Aug 15, 2025
Makes me feel confident my dog is safe from heartworm.
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Service Aug 12, 2025
Love Budget Pet World. Very economical and excellent service
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Heartgard plus Aug 12, 2025
Very effective , fast shipping
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Peace of Mind Against Heartworms Aug 08, 2025
Heartgard Plus has been a staple for my dogs for years. They think it’s a treat, and I know they’re protected from heartworms and other parasites. Easy to give and super effective.
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Winner! Aug 07, 2025
Heartgard keeps your fur babies safe from heartworms plus several others. Good shipping and great price!
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Great Product Aug 03, 2025
I've been using this for years. Works great. My 18 year old dog eats it like it's a treat. Really easy to order and arrived in just under 2 weeks to New Hampshire USA.
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Our Monthly Must Aug 01, 2025
My dog loves the taste, and I love the protection.
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Worth trying Jul 22, 2025
Heartworm disease prevention has become easy and effective with this one
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Heartgard Jul 17, 2025
Perfect, from order time to delivery. Very pleased!
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Loved it Jul 15, 2025
No more sress of heartworm disease
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Good Jul 10, 2025
Very effective
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