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How to prevent dog fleas? K9 Advantix, collars, oral meds: combine?

Updated On September 23rd, 2025

Pet's info: Dog | Collie | Female | spayed | 4 years and 10 months old | 83 lbs

Daisy recently had fleas. To prevent it I bought K9 Advantix and hope to apply on Monday after a second flea bath on Friday. 1. Is this enough time to make sure the medicine works. 2. I'm considering the Sentry flea control collar. Is two methods more strong? Is it recommended? If not, any recommendations? 3. Is an oral medicine more recommended? Is it safe to use in addition to topical?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on February 20th, 2017

1. You don't need to give Daisy a flea bath before giving her the Advantix. You can give her the Advantix now. I don't recommend flea baths because they don't work well and can be very irritating to the skin. 2. You do not need to use the Advantix with the Sentry flea collar. Using Sentry (which contains fipronil) and Advantix together should be done with caution, as they have not be approved by the manufacturers for use together. The Advantix alone is enough protection. 3. You can give Daisy Capster with the Advantix. It's a one time pill that stars killing fleas in 30 minutes, and is safe to use anytime. That's the only oral medication I woken recommend to use in combination with the Advantix. Don't forget to disinfect the environment as well. Wash Daisy's bedding in hot soapy water, and vacuum the furniture and carpet surfaces. You can use a flea spray in the home such as Indorex, or you may need to flea bomb the house to kill the fleas. I hope this helps!

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