Heartgard Plus Chewable Tablets for Dogs
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Heartgard Plus is a veterinarian-prescribed, once-monthly chewable treatment that protects dogs from heartworms, roundworms, and hookworms. Using two active ingredients—ivermectin and pyrantel pamoate—this trusted medication offers advanced protection against parasites.
How Heartgard Plus Works
Ivermectin eliminates heartworm larvae transmitted by infected mosquito bites, stopping infestations before they can develop.
Pyrantel pamoate paralyzes and expels roundworms and hookworms during early stages of their lifecycle.
Because Heartgard Plus targets worms in their immature stages, it’s essential to give doses consistently. Skipping doses can leave your dog vulnerable, and the product does not treat established infestations of adult worms.
Why Choose Heartgard Plus?
Heartgard Plus is delivered in a beef-flavored chewable tablet that most dogs enjoy like a treat, making administration simple. It’s available in three color-coded doses based on weight:
- Blue: For dogs up to 24 lbs.
- Green: For dogs 26-50 lbs.
- Brown: For dogs 51-100 lbs.
- For dogs over 100 lbs., your veterinarian can customize an appropriate dosage.
Heartworm Prevention is Crucial
Heartworm disease is a severe condition caused by parasitic worms that damage the heart and lungs. Transmitted through mosquito bites, it only takes one bite for your dog to become infected—even if they live indoors. Left untreated, heartworms can cause inflammation, organ damage, and even death.
Heartgard Plus is FDA-approved and widely recommended for its effectiveness, safety, and long history of success.
Frequently Asked Questions
What is the difference between Heartgard and Heartgard Plus?
Heartgard for dogs is a medication called ivermectin. We recommend it to prevent heartworms. On the other hand, Heartgard Plus includes the ivermectin PLUS pyrantel pamoate. The latter can amplify the heartworm prevention of ivermectin by also controlling the infection and spread of 2 kinds of roundworms and 3 types of hookworms.
Do you need a prescription for Heartgard Plus?
Yes. This is advanced protection for your pups. You must get the right dosage for your dog's weight to ensure effectiveness and safety. For these reasons, it's regulated by the FDA and managed through prescriptions from your local family veterinarian.
Is Heartgard Plus safe for all dog breeds?
Heartgard for dogs is considered safe for most breeds when given the correct dosage for your dog's weight. Because it requires a prescription, your local veterinarian will be able to verify that this prevention is right for your dog.
What are the potential side effects of Heartgard Plus?
Heartgard Plus has been used for years and is safe for the vast majority of dogs. Rare side effects include vomiting, diarrhea, and lethargy, typically within 24 hours of a dose. Extremely rare side effects may include staggering, drooling, or convulsions. If your dog exhibits any concerning symptoms, contact your veterinarian immediately.