Tri-Heart Plus Chewables
Try Heart Plus
Common Drug Name
Ivermectin plus pyrantel pamoate
What should I discuss with my veterinarian while considering Tri-Heart Plus?
Talk to your veterinarian about the heartworm testing that is recommended before starting your dog on a heartworm prevention program.
Collies or other herding breeds may have a reaction to ivermectin if given over the recommended heartworm prevention dose. If your dog is one of these breeds, and your veterinarian has prescribed Tri-Heart Plus, observe your pet for at least 8 hours after giving the medication for weakness, staggering, dilated pupils, trembling, drooling, or pressing the head against a wall. Contact your veterinarian immediately if you see these signs.
Some intestinal parasites, such as hookworms and roundworms can be spread to people. Talk to your veterinarian about other measures you can take to prevent your pet from being infected with intestinal worms, and protecting yourself.
Notify your veterinarian of any other medications or supplements your dog is taking, and if your dog has had any reactions to previous medications.
What should I do if I miss a dose?
If a dose is missed and over 30 days have gone by since the last dose, give Tri-Heart Plus immediately and resume a monthly dosing schedule. Tell your veterinarian that a dose was missed.
What is the most important information I should know?
If the interval between doses is longer than one month, the efficacy of the drug is reduced.
Who should not take it?
Do not use in puppies less than 6 weeks of age. Considered to be safe to use in pregnant and lactating animals (female animals nursing their young).
Collies and herding breeds may have a reaction to Tri-Heart Plus.
This medication should only be given to the pet for which it was prescribed.
What side effects may be seen when taking Tri-Heart Plus?
Side effects of Tri-Heart Plus are very rare, but may include vomiting and diarrhea. Even more uncommon are incoordination, convulsions, or drooling. Contact your veterinarian if you observe any of these side effects.
How is it stored?
Store between 68°F-77°F (20°C-25°C). Short periods between 59°F-86°F (15°C-30°C) are permitted. Protect product from light. The chewable form of the drug is appealing to pets and children. Store in a secure area to prevent an accidental overdose. Keep out of reach of children and pets.
What should I do if I know of or suspect there has been an overdose?
If you know or suspect your pet has had an overdose, or if you observe diarrhea, vomiting, incoordination, convulsions or drooling, contact your veterinarian immediately.
What should I avoid when giving my pet Tri-Heart Plus?
Although there are no known drug or food interactions with this medication, consult with your veterinarian before using Tri-Heart Plus with any other medications, including vitamins and supplements, since interactions may occur.
Where is more information available?
Ask your veterinarian, consult with one of our pharmacists at 1-800-447-3021, or see the Patient Information Sheet on this medication. For technical assistance or to report suspected adverse reactions, call the manufacturer, Merck, at 1-800-224-5318.