Can I safely switch cat flea meds from Hartz to Advantage 2 or Capstar?

Question

I'm thinking about giving my cat the 2nd month hartz topical treatment for fleas by hartz before I go out of town but I'm ordering capstar for her this upcoming week,do I give her the capstar when I get back? Also I heard that hartz is very very weak so would it be good to administer the advantage 2 that I'm also ordering, or do I wait because I've heard that a situation like this could overdose a cat, please help. Pet's info: Cat | Mixed Breed | Female | spayed | 1 year and 8 months old | 6.3 lbs

Ricardo Fernandez, DVM · Accepted Answer

Thanks for using Petco Pet Education Center, formerly Petcoach! Using Capstar is a great idea. Yes, you can use Capstar when you get back. If using another flea preventative like advantage 2 it is best to wait at least 3 weeks from the last dose of the Hartz product. Good luck and have a great day!

Can I safely switch cat flea meds from Hartz to Advantage 2 or Capstar?

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