Your dog can go anywhere without the risk of becoming infected with heartworm disease if you give him/her Heartgard Plus monthly!

What is Heartgard Plus?The worming medications in Heartgard Plus help to control and treat certain intestinal parasites (roundworms and hookworms) while effectively preventing heartworm in dogs. Ivermectin and Pyrantel pamoate work together in order to help protect your dog from heartworm disease, roundworms, and hookworms.

Formulated for: dogs and puppies unless he/she is under 6 weeks of age. A pregnant/breeding female should be able to tolerate this medication safely if necessary.

How is this medication given? It is recommended to administer Heartgard Plus to your dog on a monthly basis. Tablets should not be swallowed whole and should be chewed. You may need to break tablets in small pieces if your dog has the tendency to swallow without chewing.

It is essential to give tablets during the mosquito season (spring/summer) in order to protect your dog from heartworm disease although many veterinarians recommend using tablets year-round. Speak with your veterinarian to find out what he/she recommends for your dog. The first dose must be given within 30 days of the dog's first exposure to mosquitoes and the last dose must be given within 30 days after the dog's last exposure to mosquitoes if you are using Heartgard Plus seasonally.

A blood test to check for heartworm disease is typically mandatory prior to starting your dog on Heartgard Plus. Variables such as prevalence of heartworm disease in the area, missed or late doses of heartworm preventative, and your dog’s lifestyle will determine the frequency of heartworm testing. Your veterinarian is the best person to talk to regarding the frequency of heartworm testing.

Only give this medication to the dog for which it has been prescribed. Do not split tablets and give each dose exactly as directed by your veterinarian. Do not double dose. If you miss a dose, check with your veterinarian before restarting your dog on Heartgard Plus.

How does this medication work? Monthly administration of Heartgard Plus as directed by your veterinarian should effectively kill immature heartworms introduced to the dog within 30 days. Killing heartworms in the immature stage will prevent the development of adult heartworms which are difficult to treat and can be deadly if your dog becomes infected. Ivermectin and Pyrantel pamoate can also effectively kill and prevent certain intestinal worms (roundworms and hookworms).

What results can I expect? Heartworm larvae (immature heartworms) that your dog has been exposed to in the preceding month should be killed and hookworms and roundworms are effectively controlled and treated with Heartgard Plus. This should help protect your dog from adult heartworms that can lead to active heartworm infection while providing protection against intestinal parasites.


What form(s) does Heartgard Plus come in? Heartgard Plus for medium dogs 26-50 lbs is tablet that is flavored. Heartgard tablets are chewable.

Generic Name: Ivermectin, Pyrantel Pamoate

Common Brand Name: Heartgard Plus (Merial)

Dose and Administration: Heartgard Plus chewable tablet with beef flavoring that is given every 30 days (monthly). The dose your dog needs is based on his/her body weight. Heartgard Plus should not be swallowed whole and may broken into pieces should this be necessary.

If your dog has missed more than one monthly dose of this medication, check with your veterinarian. It may be necessary to recheck a heartworm test in order to restart this medication again. Do not give two doses at once. Heartgard Plus should only be given to the dog that it has been prescribed for. Do not split tablets. If the interval between doses is longer than one month, the efficacy of the drug may be reduced.

• Provides protection against heartworm disease that can be potentially deadly to your dog.
• Helps treat and control roundworms and hookworms in addition to providing heartworm protection.
• Flavored chewable formulation makes administration simple and appealing to your dog.
• Monthly dosing makes it easy to give medication regularly.

Uses: Heartgard Plus is a chewable tablet that is given once a month in order to prevent heartworm disease and control and treat hookworms and roundworms which are common intestinal parasites that can sometimes cause problems in dogs.

Possible Side Effects: Heartgard Plus is generally safe but may cause some side effects including vomiting and diarrhea. Incoordination, convulsions, and drooling are rare but possible especially if this medication is given at high doses. Contact your veterinarian immediately if your dog displays any unusual symptoms once he/she starts this medication.

Drug and Food Interactions: Tell your veterinarian if your dog is taking any medications, including vitamins, supplements, and other heartworm medications because interactions are unlikely but may be possible. No known food or drug interactions have been reported with Heartgard Plus.

Precautions: Collies and other herding breeds should take this medication cautiously. If your veterinarian has prescribed this medication to any of these breeds, you should monitor your dog closely for at least 8 hours after giving this medication for weakness, staggering, dilated pupils, trembling, drooling, or pressing the head against a wall. Contact your veterinarian immediately if you see these signs. This medication should not be given to puppies less than 6 weeks of age. Heartworm testing is mandatory prior to starting Heartgard Plus. Your veterinarian is the best person to ask regarding testing recommendations.

Storage: Heartgard Plus should be stored at room temperature and does not require refrigeration. Keep this medication out of reach of children.

A prescription from your veterinarian is required to purchase Heartgard Plus.

Active Ingredients:Ivermectin, Pyrantel Pamoate