Is it safe to combine Capstar and Nexgard for my dog's flea treatment?

Question

My 13 year old Staffie came back from a few days away with a major flea problem. the Vet store gave me Capstar to give immediately and then Nexguard to give him the next day to keep it going for the month. Is the combination okay. Dont like over medicating. Pet's info: Dog | Staffordshire Bull Terrier | Male | 13 years and 5 months old | 18 lbs

Kevin Sanada, DVM · Accepted Answer

The combination of the products is known to be safe, so there would be no worry of it causing any adverse effects. I assume the vet meant to give the capstar to quickly kill any adults and to give the nexgard to ensure he doesn't get re-infested from fleas in the environment. This would be an effective way to kill all the fleas and perhaps your vet has other reasons for prescribing the combination (maybe they have experience using one versus the combination). The Nexgaurd alone should work though, so if you really don't want to just give one, then that would be the one would recommend. I would recommend calling the veterinarian and asking if this is OK though. It's also good to treat the environment for fleas, because fleas can reproduce and nest in the environment and continually cause an issue. Below is a link to a short article that explains treating the dog and environment for fleas: https://www.petcoach.co/article/5-tips-to-get-rid-of-fleas/ I hope that helps and Josh gets better soon.

Is it safe to combine Capstar and Nexgard for my dog's flea treatment?

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