What Does Catnip Do To Cats?
QUICK ANSWER
Catnip contains nepetalactone, a compound that triggers a euphoric response in cats. Affected cats may roll, rub, drool, zoom around, or become unusually relaxed. The effect lasts about 10 minutes and is followed by a temporary refractory period. It's completely safe, non-addictive, and about 30-50% of cats are genetically unaffected.
You sprinkle some dried herb on the floor and your cat transforms into a rolling, purring, drooling maniac for about ten minutes, then acts completely normal again. Here's what's actually happening during those wild few minutes.
What happens when a cat smells catnip?
The active compound, nepetalactone, binds to olfactory receptors in the cat's nose. These receptors send signals to the olfactory bulb and then to the amygdala (the emotional center of the brain) and the hypothalamus (which regulates hormonal responses). The result is a behavioral response that researchers believe mimics the cat's response to feline pheromones. Common behaviors include rolling on the ground, rubbing the face and body on the catnip source, drooling, purring, vocalizing, jumping, and frantic running. Some cats become very mellow instead of active. The response is involuntary and entirely driven by smell.
Does eating catnip do the same thing?
Eating catnip tends to produce a more sedative effect rather than the manic response triggered by sniffing. Cats that eat catnip may become mellower and more relaxed. Small amounts are safe to ingest, and some cat toys and treats include dried catnip for this reason. Large amounts might cause mild stomach upset, but cats generally self-regulate and won't overdo it. The smelled response and the eaten response are genuinely different, which is why you might see both wild energy and calm zonking out during the same catnip session.
Why doesn't catnip affect all cats?
Sensitivity to catnip is an inherited trait. About 50% to 70% of cats carry the gene that makes them responsive, and the rest are completely indifferent. Kittens under about 3 to 6 months old typically don't respond regardless of genetics, as the sensitivity develops with maturity. If your cat doesn't react to catnip, they may respond to alternatives like silver vine (Actinidia polygama) or Tatarian honeysuckle, both of which trigger similar responses through different chemical compounds. A 2017 study in the journal BMC Veterinary Research found that silver vine was actually effective in a larger percentage of cats than catnip.
Can cats get addicted?
No. Catnip is not addictive and does not produce withdrawal symptoms. After about 10 minutes, the effect wears off and most cats enter a refractory period of 30 minutes to 2 hours during which they're immune to catnip's effects. There's no evidence of tolerance building over time either; a cat that responds today will respond the same way next week. It's one of the safest enrichment tools you can offer your cat.
Catnip is a safe, natural, non-addictive way to give your cat a few minutes of intense enjoyment. Whether they go wild or zone out, the experience is harmless and temporary. If your cat doesn't respond, silver vine is worth trying as an alternative.
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