Notice of Policy Change Effective July 2026
BoosterPet Simparica Trio (and similar meds) Dispense and Refill Policy
We no longer require a heartworm test for the purchase or refill of Simparica Trio and similar parasite prevention medications. However, in accordance with WA State Law, all veterinary clinics are required to perform a yearly examination of your pet to approve ANY prescription medication or diets.
What you need to know about Heartworm Disease in Washington:
Heartworm disease is present in Washington.
All dogs that are not on a licensed heartworm preventive product (Simparica Trio or similar) are at risk of becoming infected by mosquito bite.
BoosterPet recommends a yearly heartworm test to make sure your dog is not infected by heartworm disease.
The manufacturer of Simparica Trio will not pay for heartworm treatment for a pet that has not had a yearly heartworm test (see Zoetis.com for full details).
By opting out of a yearly heartworm test for your pet, you accept any and all costs and risks associated with the use of Simparica Trio and similar products prescribed by BoosterPet.
Reminder: There’s a Free Heartworm Test Waiting for You — On Us!
We know how much you love your pet, and we want to make staying on top of their health as easy as possible. That's why we're still offering a free heartworm test with the purchase of 6 or more months of parasite prevention.