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Is Nexgard safe for my 13-week-old puppy's flea and tick prevention?

Updated On September 23rd, 2025

Pet's info: Dog | Siberian Husky | Female | unspayed | 3 months and 2 days old | 24 lbs

I am debating whether to use nexgard flea and tick prevention on my 13 week old puppy. I have had mixed reviews on it being safe. I'd just like to have more information on it

2 Answers

Most Helpful Answer

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Answered By David Darvishian

Veterinarian

Published on September 27th, 2017

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Love the name Tikaani and I hope she is doing great. She is certainly old enough to take Nexgard. I have prescribed many doses of Nexgard to dogs and puppies of all sizes and ages. There are no known contraindications with this product so it should be extremely safe to use. Now just remember that all dogs are different and they all don't react to the same products or drugs in the same manner, so it's always possible that you try Nexgard and you notice some problems. This would be uncommon although not out of the question. I would not hesitate to use it on my dogs although right now I use a topical product for fleas/ticks. Just make sure you follow the manufacturers and your veterinarians instructions for administration. Good luck and I hope you and Tikaani are greatly satisfied with Nexgard

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    Answered By Vanessa Yeager DVM MPH

    Veterinarian

    Published on

    Hi and thanks for posting. Nexgard is indicated for use in dogs 8 weeks of age and older. Nexgard has undergone rigorous safety testing and has proven to be very safe. In fact, dogs have been given up to 4 times the recommended dose without any major effects on the dogs. Most common side effects are vomiting and diarrhea. More serious reactions such as seizures were extremely rare. I hope this helps answer your question and thanks for using Petco Pet Education Center, formerly Petcoach!

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