It's nice that you don't have to go through your vet to get this but it is not very effective, not to mention a lot of people don't know the proper way to use it and can overdose a pet and causes seizures.

Pros: Sold over the counter

Cons: Not very effective

I would not use this. It does not help. The cats really hate the smell.

Pros: cheap

Cons: strong smell, not worth the money

A waste of money - spend more and get better products like Frontline or at least Advantix. All this spray does it smell up your pet

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[updated on 2008-03-24 21:07:58 EDT GMT]:
And the cat hates it !

Pros: Doesn't get rid of fleas

Cons: Ineffective

I would never spray this product on any animal. Heard too many bad stories. I am surprised that they can have this on the market.

Pros: none

Cons: Can be dangerous

I tried this years ago with no luck & now use Advantage or Frontline. One of my friends tried this recently on her cat, also with not great results. I think most of these "over the counter" ones arent great.

Pros: none

Cons: doesnt work