Most cats react to catnip by rolling, flipping, rubbing, and eventually zoning out. They may meow or growl at the same time. Other cats become hyperactive or downright aggressive, especially if you approach them. Usually these sessions last about 10 minutes, after which your cat loses interest.

Is catnip a drug for cats?

“So, it's not something that you should avoid with your cat due to a drug or bad habit stigma.” Catnip doesn't have any known long-term effects on a cat's brain or any other part of her body, and it isn't addictive, says Dr. Dunkle. “In fact, cats habituate quickly to it.”

Do cats get high on catnip?

Cats act high when they're given catnip because, well, they are. Researchers say that catnip and another plant, silver vine, produce a chemical that activates their opioid reward systems. MARY LOUISE KELLY, HOST: Even if you don't own a cat, you've probably seen one flip out over catnip.