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Why are some pet flea and tick medications illegal to buy online?

Updated On September 23rd, 2025

Pet's info: Dog | Pembroke Welsh Corgi | Female | spayed | 1 year old | 25 lbs

I saw a post on here that said buying flea meds from an online get is illegal. Can someone expand on this for me, like what kind of products are illegal to buy? I want to know because I buy a lot of my pets stuff online after I bought it from my vet once and I want to make sure I’m aware of these things.

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 25th, 2020

We legally cannot prescribe anything, including flea medication, without seeing the animal in person. That's why it's illegal to buy flea medication online from a vet. Please be careful buying things like Revolution online without a prescription, as those are often counterfeit products.

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