Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed | Male | unneutered | 3 months and 8 days old | 25 lbs
Is is Safe to use Parastar for mange topical treatment along with Nexgard chewable flea/tick prevention
1 Answer
Published on September 25th, 2017
Parastar contains only fipronil and should remain topical (on the skin). Nexgard is given orally, so it works completely differently and theoretically should not interact. However, I suspect that the companies have not tested the products together, so they will likely not be able to give you a tested answer about their interaction. If you have already given the Nexgard for the month and need to add Parastar for mites, make sure to ask your vet for their recommendation. If you are just trying to get flea/tick protection, you should be able to get that with Parastar alone, so again I would ask your vet for their recommendation for your area since flea and tick product efficacy does tend to vary by region. I hope that was helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.
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