FOX: Is Advantage II dangerous for cats? In a recent article, you mentioned that the combination of imidacloprid plus fipronil is dangerous. Is imidacloprid safe if it is not combined with fipronil?

As the mercury rises so do those gnarly pests fleas and tick. No worries! We've done the research on available flea and tick ...

Advantage II is a topical solution for flea and tick control in cats at least 8 weeks old and weighing two pounds. The active ingredients in Advantage, imidacloprid and pyriproxyfen, work together ...