When it comes to treating a flea infestation, there have always been two paths to follow: One is to treat the environment where the fleas are developing, and the other is to treat the pet itself.

Hartz UltraGuard topical liquid products for cats all contain the active ingredient etofenprox. Etofenprox is classified as a synthetic non-ester pyrethroid that is effective against fleas and ticks.

Provecta II for Cats (topical liquid containing imidacloprid and pyriproxyfen) Provecta Advanced for Dogs (topical liquid containing imidacloprid, permethrin, and pyriproxyfen) Provecta Pro (dog ...

Dear Dr. Fox: In a recent column, you mentioned a safe flea control for cats. I don't like using the chemical ones such as Advantage or Revolution. My cat does go out, supervised, for about 15 minutes ...

Summer is around the corner and many pet owners may have lapsed giving monthly flea control for their pets. As the weather becomes warmer, fleas begin to show up in increasing numbers. That’s because ...

You recently expressed concern that many vets are advising monthly flea-control drugs for dogs and cats — for life. Would you explain what effects there might be if the treatment is discontinued after ...

A new paper in Environmental Toxicology and Chemistry finds that common medications used for flea and tick control in dogs ...