Hartz flea medicine failed. Is it safe to give my dog Credelio now?

Question

I gave my 6month old dog Hart’z topical flea medicine 9 days ago. It doesn’t seem to work. Would it be alright to give her credelio tablet. Pet's info: Dog | Golden Retriever | Female | unspayed | 5 months and 22 days old | 38 lbs

Dr. Melanie, BVSc MS · Accepted Answer

Hartz is a very poor product, so I'm not surprised it didn't work for Kalee. I would wait at least two weeks after you applied the Hartz before giving her the credelio, as it's not good to combine flea medications. Remember as well that fleas live in the environment, they only jump on the dog to feed, so you have to disinfect your home 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!

Hartz flea medicine failed. Is it safe to give my dog Credelio now?

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