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Is it safe to give my dog Benadryl with Zyrtec for allergies?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 2 years and 10 months old

Oliver was prescribed half a pill of Zyrtec a day by his vet for allergies. He is having a flare up right now and is extremely itchy and rubbing his eyes. Can I give him children's benadrlyn with the Zyrtec? I was told by a friend in vet school to try children's Benadryl. She said it works well for her dogs.

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on December 6th, 2016

Unfortunately, it is illegal for the experts at Petco Pet Education Center, formerly Petcoach to prescribe a medication, even an OTC drug, without seeing the animal in person first. I would give your vet a call, and they can advise you if it's safe to give Oliver a benadryl or not. They can also give you the correct dose for his weight.

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