Catnip, or Nepeta cataria, is a plant from the mint family that affects about 50% to 70% of cats, eliciting responses like euphoria and hyperactivity due to a compound called nepetalactone. The reaction, which is hereditary, usually lasts around 10 minutes and is followed by a period of disinterest. Available in various forms such as raw leaves, sprays, pellets, and toys, catnip can be used to enhance play, assist in training, and provide stress relief. While generally safe, it should be used in moderation to avoid overstimulation, and not all cats will respond to it.