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Iverhart Plus 51-100lbs: Heartworm Preventative -VetApprovedRx.com
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IVERHART PLUS is an affordable once a month oral preventative that provides complete protection against heartworms and treats and controls hookworms and roundworms.

All dogs should be tested for existing heartworm infection before starting treatment with IVERHART PLUS Flavored Chewables.

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Item# Size/Desc Qty Price
Brown 51-100 lbs -6 Pack
Save $6.00!  
This item requires a RX
51-100 lbs Brown 12 Doses
Save $4.00!
Item qualifies for FREE SHIPPINGThis item requires a RX

**Note: This product requires a veterinarian's prescription to purchase.At checkout you will need to provide your veterinarian's FAX or email address. We will then send him or her a prescription verification that he or she will need to sign and return before we can ship you this product.


*Economically Priced
*6 month packaging
*3 sizes in color coded packages
*Palatable flavored chewables
*Prevents Heartworms
*Prevents and control hookworms and roundworms


IVERHART PLUS® ivermectin/pyrantel Flavored Chewables should be administered orally at monthly intervals at the recommended minimum dose level of 6 mcg of ivermectin per kilogram 2.72 mcg/lb and 5 mg of pyrantel as pamoate salt per kg 2.27mg/lb of body weight. The recommended dosing schedule for prevention of canine heartworm disease and for the treatment and control of ascarids and hookworms is as follows:

*  Up to 25 lbs
*  26 to 50 lbs
*  51 to 100 lbs 1 272 mcg 227 mg

*IVERHART PLUS Flavored Chewables are recommended for dogs 6 weeks of age and older.

*For dogs over 100 lbs use the appropriate combination of these flavored chewables.


*Remove only one flavored chewable at a time from the foil-backed blister card.
*Because most dogs find IVERHART PLUS Flavored Chewables palatable, the product can be offered to the dog by hand. Alternatively, it may be added intact to a small amount of dog food or placed in the back of the dog's mouth for forced swallowing.

*Care should be taken that the dog consumes the complete dose, and treated animals should be observed for a few minutes after administration to ensure that part of the dose is not lost or rejected. If it is suspected that any of the dose has been lost, redosing is recommended.

*IVERHART PLUS Flavored Chewables should be given at monthly intervals during the period of the year when mosquitoes vectors, potentially carrying infective heartworm larvae, are active. The initial dose must be given within a month 30 days after the dog's first exposure to mosquitoes. The final dose must be given within a month 30 days after the dog's last exposure to mosquitoes.

*When replacing another heartworm preventive product in a heartworm disease preventive program, the first dose of IVERHART PLUS   

Flavored Chewables must be given within a month 30 days of the last dose of the former medication.

*If the interval between doses exceeds a month 30 days, the efficacy of ivermectin can be reduced. Therefore, for optimal performance, the flavored chewable must be given once a month on or about the same day of the month. If treatment is delayed, whether by a few days or many, immediate treatment with IVERHART PLUS Flavored Chewables and resumption of the recommended dosing regimen minimizes the opportunity for the development of adult heartworms.


*All dogs should be tested for existing heartworm infection before starting treatment with IVERHART PLUS Flavored Chewables, which are not effective against adult D. immitis. Infected dogs must be treated to remove adult heartworms and microfilariae before initiating a program with IVERHART PLUS Flavored Chewables.

*While some microfilariae may be killed by the ivermectin in IVERHART PLUS Flavored Chewables at the recommended dose level, IVERHART PLUS Flavored Chewables are not effective for microfilariae clearance.

*A mild hypersensitivity-type reaction, presumably due to dead or dying microfilariae and particularly involving a transient diarrhea, has been observed in clinical trials with ivermectin alone after treatment of some dogs that have circulating microfilariae.

*Keep this and all drugs out of the reach of children. In case of ingestion by humans, clients should be advised to contact a physician immediately. Physicians may contact a Poison Control Center for advice concerning cases of ingestion by humans.

*Store at controlled room temperature of 59°&ndash 86°F 15°&ndash 30°C.

*Protect product from light.


*Use product on or before its expiration date.

*Discard or return unused tablets.


In clinical trials with ivermectin/pyrantel, vomiting or diarrhea within 24 hours of dosing was rarely observed 1.1% of administered doses.

The following adverse reactions have been reported following the use of ivermectin: Depression/lethargy, vomiting, anorexia, diarrhea, mydriasis, ataxia, staggering, convulsions and hypersalivation.


Studies with ivermectin indicate that certain dogs of the Collie Breed are more sensitive to the effects of ivermectin administered at elevated dose levels more than 16 times the target use level of 6 mcg/kg than dogs of other breeds. At elevated doses, sensitive dogs showed adverse reactions which included mydriasis, depression, ataxia, tremors, drooling, paresis, recumbency, excitability, stupor, coma and death. Ivermectin demonstrated no signs of toxicity at 10 times the recommended dose 60 mcg/kg in sensitive Collies. Results of these trials and bioequivalency studies, support the safety of ivermectin products in dogs, including Collies, when used as recommended.

Ivermectin/pyrantel 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. In clinical trials, many commonly used flea collars, dips, shampoos, anthelmintics, antibiotics,
vaccines and steroid preparations have been administered with ivermectin/pyrantel in a heartworm disease preventive program.
In one trial, where some pups had parvovirus, there was a marginal reduction in efficacy against intestinal nematodes, possibly due to a change in intestinal transit time.

Iverhart is manufactured by and is a registered trademark of Virbac AH.  The information provided on this website 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. We reference Virbac AH as the source for our information, you may research this product further at the Virbac AH webpage: http://www.virbacvet.com/iverhart/product/iverhart_plus. You should always consult your own veterinarian for specific advice concerning the diagnosis, and treatment of your pet. As stated the information provided is for educational purposes to aid you in purchasing your pet's medication, it is not a substitute for a veterinary exam, nor does this information suggest that this medication will be tolerated by your pet or that your pet will not experience side effects.
Note: Any trademarks are the property of their respective companies