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What flea treatment is safe for my 7-week-old puppy turning 8 weeks?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 1 month and 9 days old | 4 lbs

What to use on a 7 week old puppy for fleas? Will be 8 weeks old in 3 days.

3 Answers

Most Helpful Answer

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Answered By Debi Matlack

Veterinary Technician

Published on May 10th, 2019

Revolution can be used on puppies 6 weeks of age and older, and there is no minimum weight requirement. At 7 weeks old, he can use Advantage II if the puppy weighs at least 3 pounds, or K9 Advantix II if he weighs at least 4 pounds. If you prefer a flea collar, the Seresto collar can be used on puppies at least 7 weeks of age or older. After he is eight weeks old, you can use Activyl, or Frontline Plus, as well as some of the newer oral flea control medications such as NexGard and Trifexis.

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17Pet Parents found this answer helpful

Other Answers

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    Answered By Kevin Sanada, DVM

    Veterinarian

    Published on December 14th, 2017

    There are a few different products that can be used, but I'm most familiar with Frontline and Revolution. They both have products made specifically for puppies this age. These are safe and effective products for fleas and ticks. Only use the product that is labeled specifically for puppies and make sure the pups fall within the weight range listed on the box. I hope that helps and all is well with Bentley.

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    5Pet Parents found this answer helpful

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    Answered By Elva Ma DVM

    Veterinarian

    Published on March 1st, 2018

    Hello, and thank you for your question! There are several veterinary-approved products that are safe for 8 week old puppies, such as Advantage Multi or Revolution. I would encourage you to visit your vet to prescribe the appropriate medication at the proper strength, and advise you of the proper duration of treatment. I hope this helps, and that Stormie feels better soon!

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    1Pet Parents found this answer helpful

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