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What's the best dewormer for my 12-week-old puppy, according to vets?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | unspayed | 2 months and 6 days old | 5 lbs

What is the best de worker for puppies 12 weeks of age

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2 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on August 27th, 2017

Great question! I personally like Panacur. It's an excellent dewormer that you can get OTC. It's a three day course of treatment, and Bella will need another course of treatment two weeks after the first to kill all the worms. She should then be dewormed monthly until she is six months old, and should be dewormed every three months thereafter. I hope this helps!

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Related Answers from Veterinarians

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    Answered By Makenzie Kurth, DVM

    Veterinarian

    Published on September 17th, 2018

    There is a link below to my favorite. This is my favorite because it gets all 4 of the major worm types. Be sure to get the right size for Halo’s weight and to follow the label directions exactly. If any diarrhea persists or you think there are still worms, Halo (and a sample of her poop) should head to the vet for better diagnosis and treatment. https://www.petco.com/shop/en/petcostore/product/bayer-quad-dewormer-tablets-for-dogs-26-to-60-lbs?rrec=true

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