Researchers suspect that catnip targets feline "happy" receptors in the brain. When eaten, however, catnip tends to have the opposite effect and your cat mellows out. Most cats react to catnip by rolling, flipping, rubbing, and eventually zoning out. They may meow or growl at the same time.

How do I calm my cat down from catnip?

The key to using catnip for relaxing your kitty is to give it to her about 15 minutes prior to the stressful event, such as the dreaded veterinary trip. After she hangs from the ceiling and bolts around the room at lightning speed, she will be worn out and exceptionally calm.

How long does a catnip high last for cats?

Catnip effects will vary in length, depending on the cat. Usually, the behaviors associated with smelling catnip will last for around 10 minutes and then wear off gradually. It could then take 30 minutes without smelling catnip for the cat to become susceptible to the effects again.