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My dog still has fleas after Sentry. Can I give Capstar safely?

Updated on September 23rd, 2025

Pet's info: Dog | Cocker Spaniel | Female | spayed | 4 years and 11 months old | 33 lbs

My dog is a 33 lb cocker spaniel 5 years old and she has fleas. I gave her sentry last night and it barely did anything to help. Can I give her Capstar tonight?

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on August 29th, 2018

Yes you can give Lucy Capstar! Keep in mind that fleas live in the environment, not on the animal, so you need to disinfect that as well. Wash her bedding in hot soapy water, and vacuum the furniture and carpet surfaces. You can use a spray to kill fleas in the house, such as Indorex, or a flea bomb would work well to kill the fleas in the home. Best of luck, I hope this helps!
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