What does catnip do to cats

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Last updated: April 4, 2026

Quick Answer: Catnip contains nepetalactone, a chemical compound that triggers a euphoric and sometimes hallucinogenic response in approximately 50-75% of cats. This reaction can include rolling, rubbing, drooling, and playful behavior, typically lasting for about 5-15 minutes before the cat becomes temporarily immune.

Key Facts

Nepetalactone is the active chemical in catnip responsible for the reaction.
Around 50-75% of cats are susceptible to catnip's effects.
The typical response lasts between 5 to 15 minutes.
Cats can become temporarily immune to catnip's effects after exposure.
Kittens under 3 months old and older cats may not react to catnip.

Overview

Catnip, scientifically known as Nepeta cataria, is a perennial herb belonging to the mint family. It's famous for its peculiar and often entertaining effect on domestic cats. When cats encounter catnip, many exhibit a range of behavioral changes that appear to be pleasurable, including rolling, rubbing their heads and bodies against the plant, drooling, and engaging in playful antics. This fascinating phenomenon is due to a specific chemical compound found in the plant.

What is Nepetalactone?

The magic behind catnip's effect lies in its essential oil, which contains a chemical compound called nepetalactone. Nepetalactone is released when the plant is bruised or crushed, allowing its scent to be inhaled by cats. When inhaled, nepetalactone binds to olfactory receptors in a cat's nose, which then send signals to the brain, specifically to the amygdala (the part of the brain associated with emotions) and the hypothalamus (which controls various bodily functions and responses).

How Do Cats React to Catnip?

The reaction to catnip is often described as euphoric or even mildly hallucinogenic. While the exact neurological pathways are still being researched, it's believed that nepetalactone mimics feline facial pheromones, triggering a pleasure response. Common behaviors observed include:

Rolling: Cats often roll around on the ground, sometimes vigorously, as if experiencing intense pleasure.
Rubbing: They will rub their heads, chins, and bodies against the catnip or objects containing its scent. This behavior is thought to be a way of spreading the scent and marking territory.
Drooling: Some cats may drool excessively.
Vocalization: Meowing, purring, or making other vocalizations can occur.
Playfulness: Increased activity, chasing imaginary prey, or playful pouncing is common.
Licking: Some cats may lick the plant or surfaces where catnip has been.
Hyperactivity followed by relaxation: The initial excitement often subsides into a state of relaxation or lethargy after the effects wear off.

It's important to note that not all cats react to catnip. Studies suggest that approximately 50-75% of domestic cats possess a gene that makes them sensitive to nepetalactone. This sensitivity is inherited, meaning that if your cat's parents were not sensitive, it's less likely their offspring will be. Kittens under the age of 3 months typically do not respond to catnip, and some older cats may also lose their sensitivity.

Duration of Effects and Immunity

The effects of catnip are generally short-lived, usually lasting between 5 to 15 minutes. After a cat has experienced the full effects of catnip, they become temporarily immune to its allure. This period of immunity can last from 30 minutes to several hours. During this time, even if presented with more catnip, the cat will show no interest or reaction.

Is Catnip Safe for Cats?

Yes, catnip is considered safe for cats. It is non-toxic and non-addictive. While the behavioral changes can seem extreme, they are temporary and do not cause harm. Ingestion of large quantities might lead to mild gastrointestinal upset, such as vomiting or diarrhea, but this is rare and usually occurs only if a cat eats a significant amount of the plant.

Catnip Alternatives

For cats that don't react to catnip, or for owners seeking variety, several other plants and toys can elicit similar responses. These include:

Silver vine (Actinidia polygama): Contains compounds that can trigger a strong reaction in a higher percentage of cats, including those who don't respond to catnip.
Valerian root (Valeriana officinalis): Another herb that can stimulate cats.
Tatarian honeysuckle (Lonicera tatarica): The wood of this plant is also known to attract and excite cats.

These alternatives work by providing different olfactory stimuli that can engage a cat's senses and encourage playful behavior.

Conclusion

Catnip's effect on cats is a unique and natural phenomenon driven by the chemical nepetalactone. It provides a safe and enjoyable form of enrichment for many feline companions, encouraging play and interaction. Understanding the genetic basis for sensitivity and the temporary immunity helps explain why reactions can vary among individual cats.