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My 45lb dog got wrong Frontline. When can I safely apply correct dose?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 1 year and 6 months old | 45 lbs

My Mom gave my dog who is 45 lbs Frontline for a 20 lbs dog. I just ordered him the correct Frontline plus for his weight but should I wait now or gave half of the new dose?

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on May 23rd, 2023

I would wait two weeks, then apply the new dose onto Wellington. Even if you think you are giving half a dose, it may be more than that, and while Frontline is safe, too much can and does cause problems. It will be safe to give him the correct dose in two weeks. I hope this helps!
Vote Icon3Pet Parents found this answer helpful

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