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Heartgard Cat Chewables 6 Month Rx

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Product Overview

How To Use

What’s in it?


Questions & Answers

Product Description

Heartgard Cat Chewables work for the prevention of feline heartworm disease. It eliminates heartworm larvae (Dirofilaria immitis) in its tissue stage for a period of one month (30 days) following infection. It also controls and removes immature and adult hookworms (A. braziliense and Ancylostoma tubaeforme).  Check out our Heartworm Disease Chart for more information on what medicine is best for your cat.

Who is Heartgard Cat Chewables 6 Month for?

For use in cats.

Why use Heartgard Cat Chewables 6 Month?

Heartgard Cat Chewables prevent heartworms and control and remove immature hookworm infestations.

How does Heartgard Cat Chewables 6 Month work?

Heartgard for Cats contains ivermectin, which is an anti-parasitic medication that provides cats with a month of protection against heartworm disease and controls and treats hookworms.


Boehringer Ingelheim

Active ingredient(s):


How is Heartgard Cat Chewables 6 Month sold?

6 month supply for cats weighting between 5 and 15lbs.

What are the side effects of Heartgard Cat Chewables 6 Month?

  • Adverse reactions are uncommon with ivermectin when administered at the recommended dosage. It is considered safe for nursing or pregnant animals.
  • When parasites start to die, the cat may experience pain, irritation, and/or swelling at the site of the parasites.
  • If you think your pet is experiencing a side effect or medical emergency, withdraw use and speak with your veterinarian.

What special precautions are there?

  • If ingested by a human, seek emergency medical attention.
  • Keep out of reach of pets and children.
  • Properly dispose of any unused product. This medication is highly toxic to turtles, fish, and other types of wildlife.

What to do if overdose?

Contact your closest emergency animal hospital.

How can I store Heartgard Cat Chewables 6 Month?

Store in a dry and cool environment.

Helpful Tips:

If you miss a dose, administer it as soon as you remember. If it is already time for the next dose, skip the missed dose and resume the administration schedule. Never administer two doses at once. If you forget to treat your pet for 8 weeks in a row, you should administer as soon as you remember, but your pet should be re-tested for heartworms within the next 6 months because infection could have taken place when the pet was untreated.

Pharmacists are standing by to offer Pet Parent counseling regarding prescription medication purchased from Allivet before and after dispensing. Pharmacists on duty are available Monday-Friday, 9:30AM - 5:30PM EST and will be on call Saturday 12:00PM - 4:00PM EST for consultation.


Heartgard must be administered monthly, preferably on the same date each month.

Main Ingredients


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Heartgard Cat Chewables 6 Month

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