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My dog got Nexgard & a flea bath. Can I use Hartz for live ticks?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 18 lbs

My foster dog got nexgard 48 hours ago and I gave her a flea/tick bath yesterday! I found 2 ticks on her still alive can I use the liquid medication hartz has that you apply to the back? I don’t want to overdose this little girl. She is only 18 lbs

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on August 2nd, 2018

No, I would not use Hartz on her. you have to give the Nexgard time to work. I would say check her reguarly, you may find dying ticks on her that are still alive but in the process of dying. I do not recommend adding more anti-tick or anti-flea medication.

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