How Does Catnip Work? It Triggers a 10-Minute High

• The Magic Ingredient The secret is an oil called Nepetalactone. It binds to receptors in the nose and mimics feline sex pheromones, triggering a euphoric reaction.
• The Dual Effect How they consume it matters. Sniffing usually acts as a stimulant (hyperactivity), while Eating often acts as a sedative (sleepiness).
• It is Genetic Not all cats get high. Sensitivity is hereditary, and about 40% of cats lack the gene to enjoy it. Kittens under 3 months are also immune.
• Not Just House Cats Lions, tigers, and panthers react to catnip too — it’s a response hardwired across the entire cat family.
• Safety First Catnip is non-toxic and impossible to overdose on. However, eating too much can cause mild digestive upset. Avoid giving it to pregnant cats — nepetalactone may act as a uterine stimulant.

PRO TIP The Catnip Reset
The effects only last about 10–15 minutes. After that, cats enter a “refractory period” (about 30 mins to 2 hours) where they are temporarily immune to the scent. Don’t waste your supply during this time!

How It Tricks the Brain
When a cat smells this oil, it binds to receptors in the nose, sending signals through the olfactory bulb to the brain’s emotional center (the amygdala) and the hypothalamus — the gland that regulates mood, hunger, and hormones. Scientists believe this mimics feline sex pheromones, tricking the brain into a state of pure euphoria or “artificial happiness.” This is why even neutered cats might roll around acting like they are in heat.

Does It Work on All Cats
No. Sensitivity to catnip is an inherited genetic trait. About 40% of cats lack the gene and will have zero reaction to it.

Also Age Matters Kittens under 3–6 months usually don’t react because they haven’t reached sexual maturity yet. And it’s not just your house cat — lions, tigers, and leopards are also known to respond to catnip, suggesting the reaction is hardwired deep in feline genetics.

Too Much of a Good Thing
While it won’t kill them, eating too much of the plant fiber can cause digestive upset.

• Symptoms of Overindulgence Vomiting, diarrhea, or temporary dizziness.
• Safe Dosage A pinch or about 1 tablespoon of dried herb is plenty for a play session.
• Pregnant Cats Skip it entirely. Nepetalactone may act as a uterine stimulant and is not recommended during pregnancy.
• Epileptic Cats Use with caution — catnip has been shown to increase seizure susceptibility in some animals.

• Training Tool Rub it on a scratching post to make it more appealing than your sofa.
• Stress Relief Sprinkle some in the carrier before a vet visit to take the edge off.
• Frequency Limit sessions to 2–3 times per week to prevent desensitization — overuse causes cats to lose interest faster.
• Storage Hack The oils evaporate over time. Keep your dried catnip in the freezer in an airtight container to maintain its potency.

• Silvervine Actinidia polygama Often more potent than catnip. Many cats that ignore catnip go wild for silvervine.
• Valerian Root Has a strong, musky scent that works as a stimulant for cats, even catnip-immune ones.

Try both and see which your cat prefers.

• Why does my cat look aggressive on catnip
  For some cats, the “stimulant” effect can lower inhibitions, leading to play aggression. If your cat gets too bitey, switch to the “Eating” method (sedative effect) or stop using it altogether.
• How long do the effects last
  About 10–15 minutes, followed by a refractory period of 30 minutes to 2 hours where they won’t respond at all.
• Can kittens have catnip
  Not until around 3–6 months old. Younger kittens simply don’t have the neurological maturity to respond, and most will ignore it completely.
• Does catnip work on dogs
  No — catnip has no psychoactive effect on dogs. It may act as a mild sedative in some cases, but nothing like the feline response.