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Is Revolution flea medicine safe for my Corgi after a vaccine reaction?

Updated on September 23rd, 2025

Pet's info: Dog | Pembroke Welsh Corgi | Female | spayed | 2 months and 10 days old | 25 lbs

I am really nervous to give the flea meds my vet gave me to give to her. He gave me revolution zoetis and I read online that herding and collie dogs can have a reaction to the selamectin. My dog is a corgi and she has already had a reaction to the DHP vaccine. Should I talk to my vet and suggest maybe using a different flea med?

1 Answer

Most Helpful Answer

Lotus Altholtz

Answered By Lotus Altholtz

Veterinarian, Board-Certified Lab Animal Medicine Specialist

Published on March 10th, 2019

Revolution is safe for collie breeds however it only covers heart worm and flea prevention. Bravecto is an oral flea/tick prevention that can be given every 12 weeks for flea/tick prevention. It has been proven in studies to be safe in dogs with the mdr1 gene mutation and is usually given along with a monthly heartworm preventative such as Interceptor. You can discuss with your veterinarian possibly preventing vaccine reactions (vomiting, diarrhea, facial swelling, hives) by pre-treating with Benadryl. Good luck!
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