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Ivermectin (Heartgard/Heartgard Plus, Iverhart/Iverhart Plus, Tri-Heart Plus)
Veterinary & Aquatic Services Department, Drs. Foster & Smith
Flea - Tick - External Parasites
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Ivermectin is used as a heartworm preventive. It may be combined with other medications to treat other parasitic infestations. Do NOT use in doses higher than the heartworm prevention dose, except under veterinary supervision. Studies support the safety of ivermectin products in Collies and other herding breeds when given at the recommended heartworm prevention dose. For heartworm prevention, follow the dosing and testing schedule recommended by your veterinarian for your geographical area. Side effects are rarely seen, but may include staggering, vomiting, diarrhea, depression, or dilated pupils. In addition to using a heartworm preventive, reducing exposure to mosquitoes will reduce the risk of heartworm infection.

Keep this and all other medications out of the reach of children and pets.

If you think your pet has been poisoned...

Contact your veterinarian or one of the Animal Poison Hotlines (listed below) if you think your pet may have accidentally received or been given an overdose of the medication.

**ASPCA Animal Poison Control Center - 24-hour service available throughout North America.

1-888-4ANI-HELP (1-888-426-4435). $65.00 per case, billed to caller's credit card.

Follow-up calls can be made for no additional charge by dialing 888-299-2973.

There is no charge when the call involves a product covered by the Animal Product Safety Service.

**Pet Poison Helpline - 24-hour service available throughout North America for pet owners and veterinary professionals who require assistance with treating a potentially poisoned pet.

1-800-213-6680 ($59.00 per incident). Staffed 24-hours a day.

Updated 6/20/17

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