Plant Profile

Catnip

Nepeta cataria
Family: Lamiaceae  ·  Parts used: Flower, Leaf, Stem, Whole plant  ·  Also known as: catmint, catnep

The complete database record: 3 documented constituents, 4 pharmacological actions, 9 traditional / indicated uses, with 18 cited sources.

Botanical Description

Perennial herb, 30-100 cm tall, with greyish-green, downy, square stems typical of the mint family. Leaves are opposite, triangular-ovate with scalloped or toothed margins, grey-green above and softly felted (whitish) beneath, releasing a minty-lemony aroma when crushed. Small white flowers, spotted with purple or pink, are borne in dense terminal and axillary spikes. Nepetalactone, the volatile compound famous for its effect on cats, is concentrated in glandular hairs on the leaves and stems.[9]

Height: 30-100 cm
Habit: Erect, bushy, greyish-downy perennial herb
Leaves: Opposite, triangular-ovate, scalloped/toothed, felted white beneath
Flowers: Small, white with purple/pink spotting, in dense terminal and axillary spikes
Stem: Square, greyish-green, downy
Root: Fibrous perennial rootstock
Fruit: Four small nutlets (typical Lamiaceae schizocarp)
Flowering Period: June-September

Habitat & Distribution

Native to Europe and temperate Asia and widely naturalised in North America; grows on disturbed, sunny ground - roadsides, waste places, hedgebanks and dry, calcareous or well-drained soils.[9]

Harvesting

The flowering aerial parts (leaf, stem and flower) are cut at or just before flowering (summer), when volatile nepetalactone content is highest, and dried quickly out of direct light.[2, 9]

Parts: Leaf, Stem, Flower
Season: Summer, at or just before flowering

Key Constituents

Iridoid monoterpenes (nepetalactone)[2, 6]

The characteristic volatile iridoid responsible for the cat-attractant effect and studied for sedative, antimicrobial and insect-repellent activity.

Terpenes / terpenoids
Essential oil[5]

Rich in nepetalactone isomers along with other monoterpenes; studied for antimicrobial and antioxidant activity.

Essential (volatile) oil
Flavonoids[3]

Contribute to the antioxidant activity of the aerial parts.

Flavonoids

Pharmacological Actions

Anti-inflammatory[13, 14, 15]
Antimicrobial[3, 5, 7, 13, 14, 15]
Digestive aid[9, 13, 14, 15]
Sedative / sleep support[13, 14, 15]

Traditional & Indicated Uses

Arthritis / joint pain[13, 14, 15]Preliminary · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain

more plants for arthritis / joint pain →detailed sources →

Bloating[9, 13, 14, 15]Preliminary · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating

more plants for bloating →detailed sources →

Indigestion[9, 13, 14, 15]Preliminary · 1/10

inferred from digestive action

Evidence: 1
Label: Indigestion

more plants for indigestion →detailed sources →

Infection (general)[3, 5, 13, 14, 15]Preliminary · 2/10

inferred from antimicrobial action

Evidence: 2
Label: Infection (general)

more plants for infection (general) →detailed sources →

Inflammation (general)[13, 14, 15]Preliminary · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)

more plants for inflammation (general) →detailed sources →

Insomnia / sleeplessness[13, 14, 15]Preliminary · 1/10

inferred from sedative action

Evidence: 1
Label: Insomnia / sleeplessness

more plants for insomnia / sleeplessness →detailed sources →

Respiratory support[13, 14, 15]Preliminary · 1/10
Evidence: 1
Label: Respiratory support

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Skin irritation[13, 14, 15]Preliminary · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation

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Wounds[13, 14, 15]Preliminary · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds

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Traditional Use & History

Catnip has a long North American and European folk-medicine history as a mild sedative/nervine, diaphoretic (fever-reducing, sweat-promoting) remedy, carminative digestive and traditional emmenagogue; it was also given as a children's tea for colic and restlessness, though large amounts are not advised for young children and it is traditionally avoided in pregnancy.[9]

Preparations

Infusion (tea)[9]

Dried aerial parts steeped in hot water as a traditional calming, digestive tea.

Essential oil[6]

Steam-distilled from the aerial parts; used mainly as a natural insect repellent (nepetalactone) rather than taken internally.

Dosage

Infusion (tea)[12]

Health Canada's NNHPD monograph gives 1.2-12 g of dried herb top per day for adults 18 years and older, with infusion among the accepted methods of preparation. Educational reference only, not a prescription. Keep away from toddlers and young children beyond very small amounts, and avoid medicinal-dose use in pregnancy.

Safety, Cautions & Contraindications

Safety note[13, 14, 15]Caution

Pregnancy: Do not use (traditional concern around stimulating menstruation/uterus) (Health Canada, n.d.). Breastfeeding: Health Canada advises talk to a healthcare professional first (Health Canada, n.d.). Kids: It’s often described as a “gentle” traditional tea, but large amounts are not a good idea-there’s a published case where a toddler became very sleepy/“slowed down” after consuming a lot. Keep catnip tea away from toddlers unless a clinician advises it (Osterhoudt et al., 1997). Sedatives / alcohol: Catnip can be calming, so don’t stack it with other sedating herbs/sleep meds/alcohol (you could get extra drowsy) (WebMD, n.d.a). Essential oil caution: Catnip essential oil is concentrated. Research notes it may cause mild skin irritation for some people-always dilute, patch test, and never treat it like “tea.” (Reichert et al., 2019)

Safety note[13, 14, 15, 16]Caution

Duke (2002) describes catnip primarily as a sedative, diaphoretic, and emmenagogue with experimental (score 1) support. It has demonstrated uterotonic and oxytocic activity, making it contraindicated in pregnancy. The active compounds include nepetalactone and iridoids. Catnip is classified as a mild nervine and antispasmodic in traditional North American herbal medicine, though clinical trials are lacking. Due to its emmenagogue and uterotonic properties, medicinal-dose use should be avoided during pregnancy (Duke, 2002).

Herb-Drug Interactions

Sedatives Cns Depressants[17, 18]Caution
Mechanism: Catnip is traditionally used as a calming, sedative herb; taken with sedatives, sleeping tablets or other central-nervous-system depressants (including alcohol) it may add to drowsiness and slowed reactions.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

Harvest Readiness

[11]

Part: flower
Signals: Cut the flowering stems when the plant is in full flower, in summer.
Basis: traditional
Source Quote: The flowering stems are harvested in August when the plant is in full flower, they are dried and stored for use as required.
Species Confirmed: 1
Notes: PFAF (REF-3294); the flowering stems are cut at full flower in summer (in flower July-November). Single lineage -> provisional.

[11]

Part: leaf
Signals: Gather the leaves with the flowering stems at full flower, in summer.
Basis: traditional
Source Quote: The flowering stems are harvested in August when the plant is in full flower, they are dried and stored for use as required.
Species Confirmed: 1
Notes: PFAF (REF-3294); the leaf is gathered with the flowering stems at full flower. Single lineage -> provisional.

[11]

Part: stem
Signals: Cut the flowering stems at full flower, in summer.
Basis: traditional
Source Quote: The flowering stems are harvested in August when the plant is in full flower, they are dried and stored for use as required.
Species Confirmed: 1
Notes: PFAF (REF-3294); the stem is cut with the flowering tops at full flower. Single lineage -> provisional.

External Identifiers

References & Sources

  1. Geissler, M., Neubauer, C., Sheludko, Y.V. and Warzecha, H (2024) 'Nepeta cataria L. (catnip) can serve as a chassis for the engineering of secondary metabolic pathways', Biotechnology Letters, 46(5), pp. 843-850. doi:10.1007/s10529-024-03489-w Preclinical
    https://doi.org/10.1007/s10529-024-03489-w
  2. Lockhart, A., Simon, J.E. and Wu, Q (2024) 'Stability study of Nepeta cataria iridoids analyzed by LC/MS', Phytochemical Analysis, 35(7), pp. 1674-1687. doi:10.1002/pca.3410 Preclinical
    https://doi.org/10.1002/pca.3410
  3. Nadeem, A., Shahzad, H., Ahmed, B., Muntean, T. and others (2022) 'Phytochemical profiling of antimicrobial and potential antioxidant plant: Nepeta cataria', Frontiers in Plant Science, 13, pp. 969316. doi:10.3389/fpls.2022.969316 Preclinical
    https://doi.org/10.3389/fpls.2022.969316
  4. Tan, J., Li, J., Ma, J. and Qiao, F (2019) 'Hepatoprotective effect of essential oils of Nepeta cataria L. on acetaminophen-induced liver dysfunction', Bioscience Reports, 39(8), pp. BSR20190697. doi:10.1042/BSR20190697 Preclinical
    https://doi.org/10.1042/BSR20190697
  5. Mollova, S., Dzhurmanski, A., Fidan, H., Bojilov, D. and others (2023) 'Chemical Composition of Essential Oils from Nepeta cataria L. Cultivated in Bulgaria and Their Antimicrobial and Antioxidant Activity', ACS Omega, 8(17), pp. 15441-15449. doi:10.1021/acsomega.3c00704 Preclinical
    https://doi.org/10.1021/acsomega.3c00704
  6. Reichert, W., Ejercito, J., Guda, T., Dong, X. and others (2019) 'Repellency Assessment of Nepeta cataria Essential Oils and Isolated Nepetalactones on Aedes aegypti', Scientific Reports, 9(1), pp. 1524. doi:10.1038/s41598-018-36814-1 Preclinical
    https://doi.org/10.1038/s41598-018-36814-1
  7. Tiwari, G., Chaturvedi, T., Gupta, A.K., Lal, R.K. and others (2023) 'Assessment of Genetic Diversity, Micromorphology and Antimicrobial Activity in Nepeta cataria L', Chemistry & Biodiversity, 20(2), pp. e202200241. doi:10.1002/cbdv.202200241 Preclinical
    https://doi.org/10.1002/cbdv.202200241
  8. Giarratana, F., Muscolino, D., Ziino, G., Lo Presti, V. and others (2017) 'Activity of Catmint (Nepeta cataria) essential oil against Anisakis larvae', Tropical Biomedicine, 34(1), pp. 22-31. Available at: https://pubmed.ncbi.nlm.nih.gov/33592976/ Preclinical
    https://pubmed.ncbi.nlm.nih.gov/33592976/
  9. Sarkar, M., Rashmi, R., Vikramaditya and Varma, P.N (1995) 'Pharmacognosy of Nepeta cataria', Ancient Science of Life, 14(4), pp. 225-234. Available at: https://pubmed.ncbi.nlm.nih.gov/22556702/ Traditional / reference
    https://pubmed.ncbi.nlm.nih.gov/22556702/
  10. Bernardi, M.M., Kirsten, T.B., Lago, J.H.G., Giovani, T.M. and Massoco, C.O (2011) 'Nepeta cataria L. var. citriodora (Becker) increases penile erection in rats', Journal of Ethnopharmacology, 137(3), pp. 1318-1322. doi:10.1016/j.jep.2011.07.061 Preclinical
    https://doi.org/10.1016/j.jep.2011.07.061
  11. Plants For A Future 'Nepeta cataria (Catnip, Catmint)'. Available at: https://pfaf.org/user/Plant.aspx?LatinName=Nepeta+cataria Traditional / reference
    https://pfaf.org/user/Plant.aspx?LatinName=Nepeta+cataria
  12. Health Canada, Natural and Non-prescription Health Products Directorate (2026) 'Natural Health Product Monograph: Catnip - Nepeta cataria'. Available at: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/dbImages/mono_catnip_english.pdf Traditional / reference
    https://webprod.hc-sc.gc.ca/nhpid-bdipsn/dbImages/mono_catnip_english.pdf
  13. British Herbal Medicine Association (1983) 'British Herbal Pharmacopoeia'. Traditional / reference
    https://scholar.google.com/scholar?q=British%20Herbal%20Pharmacopoeia
  14. Gilani, A.H., Shah, A.J., Zubair, A., Khalid, S., Kiani, J., Ahmed, A., Rasheed, M. and Ahmad, V.U (2009) 'Chemical composition and mechanisms underlying the spasmolytic and bronchodilatory properties of the essential oil of Nepeta cataria L', 121(3), pp. 405--411. doi:10.1016/j.jep.2008.11.004 Traditional / reference
    https://doi.org/10.1016/j.jep.2008.11.004
  15. Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
    https://powo.science.kew.org
  16. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition
  17. Ghasemzadeh Rahbardar, M. and Hosseinzadeh, H (2024) 'Therapeutic potential of hypnotic herbal medicines: A comprehensive review', Phytotherapy Research, 38(6), pp. 3037-3059. doi:10.1002/ptr.8201 Meta-analysis / review
    https://doi.org/10.1002/ptr.8201
  18. Block, K.I., Gyllenhaal, C. and Mead, M.N (2004) 'Safety and efficacy of herbal sedatives in cancer care', Integrative Cancer Therapies, 3(2), pp. 128-148. doi:10.1177/1534735404265003 Meta-analysis / review
    https://doi.org/10.1177/1534735404265003

This fact sheet is generated automatically from the Omnia Sana plant database and reflects its latest synced data. It is provided for educational purposes only and is not medical advice. How this site is built.

Selected studies & references

Educational use only. This profile summarises traditional and scientific sources for reference. It is not medical advice and not a substitute for a qualified practitioner. Some plants carry safety cautions and drug interactions - always check before use.
This profile is assembled automatically from the Omnia Sana plant database, which we curate by hand. How this site is built.
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