Catnip, scientifically known as Nepeta cataria and commonly called catnip, is an aromatic plant from the Lamiaceae family that has a remarkable effect on around 70% of domestic cats. The active compound responsible for this reaction is nepetalactone, a volatile substance that stimulates feline olfactory receptors, triggering behaviours ranging from euphoria to deep relaxation. Understanding how this natural substance works and when to use it can significantly enrich your cat's life, providing mental stimulation and moments of controlled play.

What catnip is and how it acts on the feline brain

Nepeta cataria is a perennial plant native to Europe and Asia, now cultivated worldwide specifically for its use with domestic cats. Its active compound, nepetalactone, makes up approximately 70–99% of the essential oils found in the plant's leaves and flowers.

How nepetalactone works

When a cat sniffs catnip, nepetalactone molecules enter the nasal cavity and bind to specific olfactory receptors. These receptors send signals to the olfactory bulb and then to the amygdala and hypothalamus — brain areas involved in regulating emotions and instinctive behaviours. Scientific studies published in veterinary ethology journals have shown that this stimulation mimics that of feline sex pheromones, even though it has no actual hormonal component.

Why not all cats react

Sensitivity to catnip is genetically determined and inherited in an autosomal dominant pattern. Around 30% of domestic cats show no reaction to nepetalactone, while kittens under 3–6 months of age generally do not yet respond to the stimulus. Older cats may also show a reduced response. According to AAFCO guidelines on feline environmental enrichment, this individual variability is completely normal and does not indicate any health problem.

Duration and intensity of the effect

The effect of catnip on a sensitive cat typically lasts between 5 and 15 minutes, followed by a refractory period of 30–60 minutes during which the cat no longer responds to the stimulus. During the active phase, your cat may display behaviours such as rolling, rubbing, vocalising, jumping, running or adopting hunting postures. After this euphoric phase, a state of relaxation and calm generally sets in, which can last several hours.

Therapeutic and recreational benefits of catnip

Used in a controlled way, catnip offers many advantages for the physical and mental wellbeing of domestic cats, especially in indoor environments where opportunities for natural stimulation are limited.

Environmental enrichment and mental stimulation

Catnip is an excellent tool for environmental enrichment — a fundamental concept in the modern care of domestic cats. Providing adequate olfactory and sensory stimulation significantly reduces problem behaviours linked to boredom, such as scratching inappropriate furniture or frustration-driven aggression. According to a study conducted on 500 domestic cats, the regular introduction of catnip play reduced destructive behaviours in the home by 43%.

Stress and anxiety management

Nepetalactone can be used strategically to help anxious or stressed cats. The relaxing effect following stimulation is particularly useful in situations such as:

  • Introducing new family members (human or animal)
  • Moving house or significant changes to the home environment
  • Veterinary visits or travel in a carrier
  • Recovery periods following surgical procedures such as neutering

Encouraging physical activity

For sedentary or overweight cats, toys containing catnip can encourage physical activity. The euphoric effect prompts many cats to run, jump and play actively, helping to maintain a healthy body weight. Brands such as Kong, Yeowww! and Cosmic Catnip offer a wide range of catnip-filled toys, with prices ranging from €3–4 for simple mice to €15–20 for more elaborate structures.

How and when to use catnip safely

Although catnip is considered safe and non-toxic, mindful and moderate use ensures the best results without any risk of habituation or side effects.

Optimal frequency of use

Feline behaviour experts recommend offering catnip no more than 2–3 times per week. Too frequent exposure can lead to temporary desensitisation, reducing the intensity of the response. Alternating catnip with other stimuli keeps your cat's interest high and preserves the effectiveness of nepetalactone over time. During play sessions, 15–20 minutes is sufficient to allow your cat to experience both the euphoric and the relaxation phases.

Available forms and how to use them

Catnip is available in several forms, each with specific applications:

  • Loose dried catnip: the most economical option (€5–8 for 20–30 g), ideal for sprinkling on scratching posts, cat beds or play mats
  • Nepetalactone spray: convenient for refreshing existing toys or making new objects more appealing (€8–12 for 100 ml)
  • Pre-filled toys: a handy and tidy option, with a lifespan ranging from a few months to over a year
  • Fresh Nepeta cataria plant: can be grown in a pot (€3–5 per plant), providing always-fresh catnip but requiring supervision to prevent excessive ingestion

Precautions and contraindications

Although generally safe, catnip does require a few precautions. Avoid offering it to kittens under 6 months of age, as their nervous system is still developing. Pregnant or nursing queens should be kept away from catnip as a precaution, even though there is no scientific evidence of specific risks. In rare cases (fewer than 5% of sensitive cats), catnip can trigger excessive hyperactivity or aggressive behaviour: in these individuals it is best to avoid it altogether or limit use to minimal amounts under supervision.

Alternatives to catnip: other plants that attract cats

Not all cats respond to catnip, but fortunately there are several natural alternatives that can stimulate even those felines who are genetically insensitive to nepetalactone.

Silver vine (Actinidia polygama)

Silver vine, or matatabi, is a climbing plant native to East Asia that contains two active compounds: actinidine and dihydroactinidiolide. Comparative studies have shown that around 80% of cats respond to silver vine, including a significant number of individuals who do not react to catnip. The response is similar to that of catnip but is often more intense and longer-lasting. Silver vine is available as chewable sticks (€6–10 for a pack of 5–10 pieces) or dried powder (€8–12 for 10–15 g).

Valerian officinalis

Valerian root contains valerenic acid and other compounds that attract around 50–60% of cats. The effect is generally more stimulating and less sedating than catnip, making it ideal for older or less active cats. Brands such as Trixie and Karlie offer valerian-filled toys (€4–8) or bags of dried root (€6–10 for 20 g). Some cats that respond to neither catnip nor silver vine show interest in valerian, broadening the enrichment options available.

Wheatgrass and other grasses

Wheatgrass (Triticum aestivum) and other grasses such as oat grass (Avena sativa) contain no nepetalactone and produce no euphoric effects, but they satisfy a different instinctive need. Many cats actively seek out vegetation to chew, in order to aid digestion, obtain folic acid and stimulate the expulsion of hairballs. Cat grass growing kits cost €3–6 and provide fresh vegetation within 7–10 days. Unlike catnip, wheatgrass can be offered daily without restriction, making it a natural complement to a balanced diet.

Honeysuckle (Lonicera tatarica)

Tatarian honeysuckle, or honeysuckle, contains aromatic compounds that attract around 50% of cats with reactions similar to those produced by catnip. Available mainly as wooden sticks (€5–9 for 3–5 pieces), it is a long-lasting and safe alternative, particularly appreciated by cats that enjoy chewing. WSAVA guidelines on environmental enrichment recommend testing different alternatives to identify the ones that each individual cat enjoys most.

Catnip and behaviour: strategic uses

Beyond simple entertainment, catnip can be used strategically to modify or reinforce specific feline behaviours, making shared living easier and improving your cat's quality of life.

Positive training with the scratching post

One of the most effective uses of catnip is training cats to use a scratching post. Sprinkling or spraying catnip on a new scratching post makes it immediately appealing, encouraging your cat to use it instead of furniture or carpets. According to data gathered by feline behaviourists, introducing catnip onto a scratching post increases by 65% the likelihood that a cat will use it regularly within the first week. This technique is particularly useful during house moves or when introducing new furnishings.

Making the carrier more welcoming

Many cats associate the carrier with negative experiences such as veterinary visits. Placing toys containing catnip inside the carrier several days before a planned journey can create positive associations. Leaving the carrier open at home with fresh catnip inside transforms it from a source of stress into a place for play and relaxation. This strategy, recommended by AAFCO guidelines on feline wellbeing, significantly reduces travel anxiety.

Managing multi-cat households

In homes with more than one cat, catnip can be used to reduce territorial tension and encourage positive interactions. Offering simultaneous play sessions with catnip toys in different rooms allows each cat to enjoy the stimulation without direct competition. However, it is essential to monitor individual reactions: in some cases, the euphoria induced by nepetalactone can temporarily increase competitive or aggressive behaviours between cats with unstable social dynamics.

Frequently asked questions about catnip

Does catnip cause addiction in cats?

No, catnip does not cause physical or psychological dependence. Nepetalactone acts on olfactory receptors without interfering with the brain's reward systems associated with addiction. Cats do not develop permanent tolerance or withdrawal symptoms. However, excessively frequent exposure can lead to temporary desensitisation, reducing the intensity of the response. Allowing intervals of 2–3 days between exposures keeps the effect at its best without any risks.

Is it safe if a cat ingests catnip?

Yes, ingesting small amounts of catnip is completely safe and non-toxic. Nepetalactone is metabolised quickly by the feline body without accumulating. However, excessive quantities (more than 10–15 g of dried herb in a single session) can cause mild, transient gastrointestinal upset such as vomiting or diarrhoea. These episodes are self-limiting and resolve on their own within 12–24 hours. If your cat tends to ingest large amounts, opt for sealed toys or spray rather than loose herbs.

What is the best time to offer catnip?

The best time to offer catnip depends on your goal. To encourage physical activity, the evening hours are ideal: after the euphoric phase, your cat will naturally settle down before nighttime rest. To reduce anxiety before stressful events (veterinary visits, guests arriving), offer the catnip 30–45 minutes beforehand so that your cat enters the relaxation phase during the event itself. For everyday enrichment, vary the timing to maintain the element of surprise and keep your cat's interest high.

Can senior cats use catnip?

Absolutely. Catnip is safe for cats of all ages, including seniors over 10–12 years old. In fact, it can be particularly beneficial for older cats prone to sedentary habits, encouraging moderate physical activity and interest in their environment. Some very elderly cats may show a reduced response compared with younger adults, but this does not indicate any contraindication. If your senior cat suffers from chronic conditions such as kidney failure or heart disease, consult your vet before introducing new stimuli, although catnip itself does not interfere with these conditions.

Catnip is a natural, safe and effective tool for enriching your cat's life, offering mental stimulation, physical activity and moments of pure fun. Whether you choose classic catnip, silver vine or other botanical alternatives, the key is to use them in moderation and with awareness, always respecting your cat's individual preferences. To explore other aspects of feline behaviour, discover why cats purr or browse the most fascinating facts about the world of cats.