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Iverhart Plus Chewables (Click for Larger Image)
    Click for Rx info
Monthly heartworm prevention that is a generic to Heartgard Plus.
  • Prevents heartworm disease
  • Treats and controls roundworms
  • Treats and controls hookworms
  • Pork liver flavor chewable
  • For dogs only

    Iverhart Plus Chewables

    Q & A
    Starts at $26.09 Ships in one business day or less
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      Product Info   How to use   Ingredients   Customer Reviews   Q & A  

    What is Iverhart Plus?

    Iverhart Plus for dogs is a heartworm preventative that also controls roundworms and hookworms. Iverhart Plus (ivermectin/pyrantel) is a generic equivalent to Heartgard Plus and Tri-Heart Plus. It has the same active ingredients and is the same strength, but it is pork liver flavored like Tri-Heart Plus, while Heartgard Plus is beef flavored. Iverhart Plus is considered to be the #1 generic heartworm preventative recommended by veterinarians.
    For: Dogs (6 weeks of age or older and no weight requirement)
    Tasty pork liver flavored chewable tablets
    Easy to administer
    Small, easy-to-chew tablet for smaller or finicky dogs
    Given once a month

    How it works:
    Iverhart Plus is an anthelmintic (dewormer). The ingredient pyrantel pamoate is used to treat and control roundworms and hookworms in dogs.

    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.

    Can cause sensitivities in herding dog breeds. Side effects of Iverhart Plus are rare, but may include lethargy, limpness, salivation, shaking, diarrhea, decreased appetite, licking lips, and belching. Don't give your pet Iverhart Plus if already giving a different heartworm medication. The safe use of this drug has not been evaluated in pregnant or lactating bitches.

    More Information:
    Brand Name
    Iverhart Plus (Virbac), Tri-Heart Plus (Intervet)
    Generic Name
    Ivermectin, Pyrantel pamoate

    What is the most important information I should know about Iverhart Plus: Iverhart Plus is a prescription medication available as pork liver flavored chewable tablets. The usual dose of Iverhart Plus in dogs up to 25 pounds is 68mcg/57mg (Blue box), for dogs 26-50 pounds is 136mcg/114mg (Green box) and for dogs 51-100 lbs 272mcg/227mg (Brown box). Dogs over 100 lbs are given a combination of tablets.

    What is Iverhart Plus: Iverhart Plus is given once a month for the prevention of heartworm disease in dogs. Iverhart Plus also protects against hookworms and roundworms in dogs. It is recommended by the American Heartworm Society that heartworm prevention be given year-round. Iverhart Plus may also be used for purposes other than those listed in this guide.

    What should I discuss with my veterinarian before giving Iverhart Plus to my pet: Tell your veterinarian if your pet has ever had an allergic reaction to the medication.

    How should this medication be given: Give Iverhart Plus exactly as directed by your veterinarian. If you do not understand the directions ask your pharmacist or veterinarian to explain them to you. Use with caution, Collies and other herding dog breeds have been known to have adverse reactions to invermectin administered at elevated dose levels. Heartworm testing should be performed prior to the start of prevention therapy. If your pet is off Iverhart Plus 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 Iverhart Plus at room temperature. Do not remove the tablet from its wrapper until ready to give to your pet. Keep this medication away from children and pets. The safe use of this drug has not been evaluated in pregnant or lactating bitches. 

    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 Iverhart Plus to my pet: Because humans can contract hookworms from animals, it is important to maintain good personal hygiene. It is also important to eliminate fleas on your pet and in the household and to not feed your pet rodents. To prevent reinfection, daily cleanup of stools is recommended.

    What are the possible side effects of Iverhart Plus: Side effects of Iverhart Plus are rare at the recommended heartworm prevention dose. Higher doses in dogs may cause tremors, dilated pupils, loss of body weight, or death.

    What other drugs will affect Iverhart Plus: Do not give Iverhart Plus if your pet is already being given another heartworm medication.

    Where can I get more information: Your pharmacist has additional information about Iverhart Plus written for health professionals that you may read.




    Give Iverhart Plus Flavored Chewables once a month on the same day of each month year-round.
    Iverhart Plus Flavored Chewables can be given by hand, mixed intact with a small amount of food, or placed in the back of your dog’s mouth for forced swallowing.
    Watch your dog closely following dosing to be sure the entire dose has been swallowed. If it is not completely swallowed, give one more full recommended dose as soon as possible.
    Tip: Do not remove the chewable from its wrapper until ready to give to your pet.
    Pet Weight Dosage
    Dogs/Puppies: (6 weeks of age and older) Up to 25 lbs Give 1 chewable every month (Blue Box)
      26-50 lbs Give 1 chewable every month (Green Box)
      51-100 lbs Give 1 chewable every month (Brown Box)
      Over 100 lbs Give combination of chewables based on weight
    Storage: Should be stored at room temperature.
    Iverhart Plus– Blue Box (Dogs up to 25 lbs):
    Active Ingredients (per chewable tablet) Amount
    Ivermectin 68 mcg
    Pyrantel 57 mg

    Iverhart Plus– Green Box (Dogs 26-50 lbs):
    Active Ingredients (per chewable tablet) Amount
    Ivermectin 136 mcg
    Pyrantel 114 mg

    Iverhart Plus – Brown Box (Dogs 51-100 lbs):
    Active Ingredients (per chewable tablet) Amount
    Ivermectin 272 mcg
    Pyrantel 227 mg
    Iverhart Plus Chewables 4.4 5 849 852
    Great Product! Its been about a week since I received Iverhart for my ChiChi. So far, so good! 06/21/2011
    Yellow Lab My dog has been on Iverhart Plus for a couple of years and is doing fine. I would recomment Iverhart Plus, and it's cheaper than the other ones, I won't mention brand names. 06/20/2011
    the iverhart plus chewables are tablets as opposed to the soft chews. My dogs would not chew these. 06/13/2011
    very good service i was very pleases with your service. and plan on using you in the future. 06/11/2011
    Invehart Plus I love the service I get from your company! Extremely quick delivery and always dependable, I tell others with pets to try your service. Your products and suggestions are great!!! 04/03/2011
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    244 Questions · 385 Answers

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    0 answers


    Lucy seems to itch a lot this time of year she doesn't have fleas what can I give her to ease her itching
    4 days ago
    Answer this question
    How do I get Rx to you? Text Pic?
    1 week ago
    Answer this question
    I want to order a 12 month supply for the Iverhart Plus Chewables for puppies but am not sure if they will expire before the end of the 12 months.

    Also if it required to give the medication to the puppy on the same date each month?
    1 month ago
    Answer this question
    My dog has developed an allergy to beef so I need to switch him from Heartguard. I would like to order since this is made with pork. I cannot find it anywhere.
    2 months, 2 weeks ago
    Answer this question


    Thank you for your question. This is currently on a national backorder with the manufacturer.
    2 months, 2 weeks ago
    Maureen PetMeds Pro
    Pompano Beach, FL
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    3 months, 4 weeks ago
    Answer this question


    We cannot recommend to use any medication beyond the expiration date since it may have lost some of its efficacy or may no longer be safe for your pet.
    3 months, 3 weeks ago
    Pompano beach
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    2 3 4 5 ... 9 Next
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    This information sheet is for educational purposes only and is intended to be a supplement to, and not a substitute for, the expertise and professional judgment of your veterinarian. The information is NOT to be used for diagnosis or treatment of your pet. You should always consult your own veterinarian for specific advice concerning the treatment of your pet. The information is not intended to cover all possible uses, directions, precautions, warnings, allergic reactions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for your pet. It is not a substitute for a veterinary exam, and it does not replace the need for services provided by your veterinarian.
    Note: Any trademarks are the property of their respective companies.
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