Are systemic flea treatments harmful to dogs?

  1. doodlebugs profile image83
    doodlebugsposted 6 years ago

    Are systemic flea treatments harmful to dogs?

    Are oral and topical flea treatments, which interrupt the life cycle of fleas, harmful to your dog in any way?

  2. Daughter Of Maat profile image96
    Daughter Of Maatposted 6 years ago

    Theoretically yes, since they are absorbed into the blood stream. They are pesticides. As we know, pesticides cause cancer in humans, and a dog's physiology is almost identical to ours with the obvious exceptions. If you want to try a natural flea treatment, peppermint is EXCELLENT at keeping the fleas at bay, and the ones that are already there run for cover immediately. It doesn't kill them though.