I have an Australian Labradoodle which has hair instead of fur.

I have concern with the topical treatments, as I worry about exposure to others (my family; my wife has allergic reactions to a lot of harsh chemicals). I also worry about the effectiveness of oral medications.

Which is safer & more effective?

1 Answer 1


Firstly, it's probably worth understanding how each of them works and the upsides to them...


  • Typically work by ingestion. In other words the parasite takes a bite, as it were, and poisons itself.
  • No issue with substance transferring to you or a child, not all people react well to topical medications, including babies.
  • Some options are more or less effective. Spinosad kills all and lasts 30 days. Nitenpyram kills adults and Lufenuron is good at rendering eggs and larvae ineffective.


  • Neurotoxin, effects on contact. Spread using the natural oils in the fur.
  • Effective in preventing egg laying and larval growth.
  • Potential physical contact with a chemicals, potentially risky for children who might pet the animal and then put hands in mouth.

So, what does that mean?

The answer to your question is... it depends. With children around, the oral option is safer, but you need the right one to get the best effect. With topical, it's more effective, especially at preventing the next generation, but carries risks with children around.

  • Also in some areas the fleas are developing a resistance to the topical treatments so they are less effective.
    – Beth Lang
    Commented Mar 19, 2014 at 6:16
  • If utilizing oral treatment for fleas, what are other options for tick prevention medication?
    – Jason
    Commented Mar 20, 2014 at 3:49
  • @Jason - Sorry, missed that question earlier... Ideally you have a combined medication, but if not, then you probably want to ask a vet about drug interactions with the possible choices. I can't really advise there.
    – Joanne C
    Commented Mar 25, 2014 at 16:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.