Plant Comparison

Catnip vs Speedwell

A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.

First plant
Second plant
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Plant ACatnipNepeta catariaLamiaceaeFull monograph →
Plant BSpeedwellVeronica officinalisPlantaginaceaeFull monograph →

At a glance

Catnip and Speedwell: they share 6 indicated uses (arthritis / joint pain, bloating, indigestion, …); 2 pharmacological actions in common.

CatnipSpeedwell
Constituents32
Pharmacological actions44
Indicated uses98
Safety notes22
Cited sources1712
Indicated uses
Only Catnip
Infection (general)Insomnia / sleeplessnessWounds
Shared (6)
Arthritis / joint painBloatingIndigestionInflammation (general)Respiratory supportSkin irritation
Only Speedwell
BronchitisCough
Pharmacological actions
Only Catnip
AntimicrobialSedative / sleep support
Shared (2)
Anti-inflammatoryDigestive aid
Only Speedwell
AntioxidantExpectorant

Evidence face-off — shared uses

ConditionCatnipSpeedwellVerdict
Arthritis / joint pain1/101/10Comparable evidence
Bloating1/101/10Comparable evidence
Indigestion1/102/10Comparable evidence
Inflammation (general)1/102/10Comparable evidence
Respiratory support1/102/10Comparable evidence
Skin irritation1/101/10Comparable evidence

Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.

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
Iridoid glycosides (aucubin, catalpol, verproside, verminoside)[8]

Anti-inflammatory constituents that inhibit pro-inflammatory mediators in lung cells.

Iridoid glycosidesGlycosides
Flavonoids and phenolic acids[8, 9, 10]

Antioxidant constituents.

Phenolic acidsFlavonoids

Pharmacological Actions

Anti-inflammatory[12, 13, 14]
Antimicrobial[3, 5, 7, 12, 13, 14]
Digestive aid[9, 12, 13, 14]
Sedative / sleep support[12, 13, 14]
Anti-inflammatory[8]

Anti-inflammatory and antioxidant

Antioxidant[1, 5, 6, 8]

Anti-inflammatory and antioxidant

Digestive aid[4, 11]

Mild digestive / stomach tonic (indigestion)

Expectorant[8, 11, 12]

Traditional expectorant for cough and respiratory complaints (iridoid glycosides inhibit lung inflammation) - a standardised extract suppressed COX-2 and eotaxin via the NF-kB pathway in human lung epithelial cells

Traditional & Indicated Uses

Arthritis / joint pain[12, 13, 14]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Bloating[9, 12, 13, 14]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating
Indigestion[9, 12, 13, 14]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Indigestion
Infection (general)[3, 5, 12, 13, 14]Traditional · 2/10

inferred from antimicrobial action

Evidence: 2
Label: Infection (general)
Inflammation (general)[12, 13, 14]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)
Insomnia / sleeplessness[12, 13, 14]Traditional · 1/10

inferred from sedative action

Evidence: 1
Label: Insomnia / sleeplessness
Respiratory support[12, 13, 14]Traditional · 1/10
Evidence: 1
Label: Respiratory support
Skin irritation[12, 13, 14]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Wounds[12, 13, 14]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds
Arthritis / joint pain[8]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Bloating[11]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating
Bronchitis[8, 11, 12]Traditional · 2/10

inferred from expectorant action

Evidence: 2
Label: Bronchitis
Cough[8, 11, 12]Traditional · 2/10

Traditional expectorant for cough and respiratory complaints (iridoid glycosides inhibit lung inflammation) - a standardised extract suppressed COX-2 and eotaxin via the NF-kB pathway in human lung epithelial cells

Evidence: 2
Label: Cough
Indigestion[4, 11]Traditional · 2/10

Mild digestive / stomach tonic (indigestion)

Evidence: 2
Label: Indigestion
Inflammation (general)[8, 11, 12]Traditional · 2/10

Traditional expectorant for cough and respiratory complaints (iridoid glycosides inhibit lung inflammation) - a standardised extract suppressed COX-2 and eotaxin via the NF-kB pathway in human lung epithelial cells

Evidence: 2
Label: Inflammation (general)
Respiratory support[8, 11, 12]Traditional · 2/10

inferred from expectorant action

Evidence: 2
Label: Respiratory support
Skin irritation[11]Traditional · 1/10

Soothing for skin irritation (topical)

Evidence: 1
Label: Skin irritation

Safety, Cautions & Contraindications

Safety note[12, 13, 14]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[12, 13, 14, 15]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).

Safety note[11]Caution

Traditional use only; clinical evidence is limited, so a persistent cough or digestive complaint needs medical assessment. Safety in pregnancy and breastfeeding is not established.

Safety note[2, 8]Info

Buy from a reputable source: Veronica officinalis is frequently adulterated with the related Veronica chamaedrys.

External Ids

Gbif: 5341499
Wikidata: Q161139
Gbif: 3172049
Wikidata: Q156402

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

Low, creeping, mat-forming perennial herb with softly hairy, oval, finely toothed leaves along trailing stems that root as they spread. Small, pale lilac-blue flowers with darker veining are borne in slender upright spikes rising from the leaf axils.[8]

Height: 5-40 cm (upright flowering spikes; creeping stems low)
Habit: Low, creeping, mat-forming perennial herb
Leaves: Softly hairy, oval, finely toothed, opposite
Flowers: Small, pale lilac-blue with darker veining, in slender upright axillary spikes
Stem: Trailing, softly hairy, rooting as it spreads
Root: Fine roots along the creeping stem
Fruit: Small, flattened, heart-shaped capsule
Flowering Period: May-August

Habitat

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]

Grows on dry heath, moorland, open woodland, grassland and banks on acidic, well-drained soils; native to Europe and naturalised in North America.[8]

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

The flowering aerial parts are cut in summer while in flower and dried in a warm, shaded, airy place; the closely related Veronica chamaedrys is a frequent adulterant, so careful identification (or a reputable source) is important.[8]

Parts: Aerial parts (flowering herb)
Season: Summer, at flowering

Traditional Uses

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]

Speedwell has a long European folk history as a mild digestive tonic and traditional expectorant for cough and respiratory complaints, and has also been used topically as a soothing wash for irritated skin; modern research on its iridoid glycosides supports a molecular basis for the traditional respiratory use.

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.

Not documented

Dosage

Infusion (tea)[11]

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.

Not documented

References

REF-0930, REF-0931, REF-0932, REF-0933, REF-0934, REF-0935, REF-0936, REF-0937, REF-0938, REF-0939
REF-1378, REF-1379, REF-1380, REF-2552, REF-2554, REF-2555, REF-3123

Drug Class Interactions

Safety note[16, 17]Caution
Drug Class: sedatives-cns-depressants
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

Not documented

Lookalikes Review

Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07
Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07

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. 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
  12. British Herbal Medicine Association (1983) 'British Herbal Pharmacopoeia'. Traditional / reference
    https://scholar.google.com/scholar?q=British%20Herbal%20Pharmacopoeia
  13. 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
  14. Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
    https://powo.science.kew.org
  15. 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
  16. 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
  17. 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
  1. Mocan, A., Vodnar, D.C., Vlase, L., Crisan, O. and others (2015) 'Phytochemical Characterization of Veronica officinalis L., V. teucrium L. and V. orchidea Crantz from Romania and Their Antioxidant and Antimicrobial Properties', International Journal of Molecular Sciences, 16(9), pp. 21109-21127. doi:10.3390/ijms160921109 Preclinical
    https://doi.org/10.3390/ijms160921109
  2. Crisan, G., Tamas, M., Miclaus, V., Krausz, T. and others (2007) 'A comparative study of some Veronica species', Revista Medico-Chirurgicala a Societatii de Medici si Naturalisti din Iasi, 111(1), pp. 280-284. Preclinical
    https://scholar.google.com/scholar?q=A%20comparative%20study%20of%20some%20Veronica%20species
  3. Korzhikova, E.B (1991) 'Speedwell (Veronica officinalis)', Feldsher i Akusherka, 56(2), pp. 37-39. Traditional / reference
    https://scholar.google.com/scholar?q=Speedwell%20%28Veronica%20officinalis%29
  4. Scarlat, M., Sandor, V., Tamas, M. and Cuparencu, B (1985) 'Experimental anti-ulcer activity of Veronica officinalis L. extracts', Journal of Ethnopharmacology, 13(2), pp. 157-163. doi:10.1016/0378-8741(85)90003-0 Preclinical
    https://doi.org/10.1016/0378-8741(85)90003-0
  5. Wojcik, E (1973) 'Phytochemical studies of the Veronica officinalis L', Acta Poloniae Pharmaceutica, 30(2), pp. 195-201. Available at: https://pubmed.ncbi.nlm.nih.gov/4703978/ Preclinical
    https://pubmed.ncbi.nlm.nih.gov/4703978/
  6. Wojcik, E (1977) 'Occurrence of 6-hydroxyluteolin 7-glucoside in the herb of Veronica officinalis L', Acta Poloniae Pharmaceutica, 34(3), pp. 295-298. Available at: https://pubmed.ncbi.nlm.nih.gov/906876/ Preclinical
    https://pubmed.ncbi.nlm.nih.gov/906876/
  7. Bellia, G. and Pieroni, A (2015) 'Isolated, but transnational: the glocal nature of Waldensian ethnobotany, Western Alps, NW Italy', Journal of Ethnobiology and Ethnomedicine, 11, pp. 37. doi:10.1186/s13002-015-0027-1 Traditional / reference
    https://doi.org/10.1186/s13002-015-0027-1
  8. (2017) 'Veronica officinalis Product Authentication Using DNA Metabarcoding and HPLC-MS Reveals Widespread Adulteration with Veronica chamaedrys', Frontiers in Pharmacology. doi:10.3389/fphar.2017.00378 Traditional / reference
    https://doi.org/10.3389/fphar.2017.00378
  9. Wojcik, E (1973) 'Flavonoids of the Veronica officinalis L. herb', Acta Poloniae Pharmaceutica, 30(4), pp. 447-451. Available at: https://pubmed.ncbi.nlm.nih.gov/4762340/ Preclinical
    https://pubmed.ncbi.nlm.nih.gov/4762340/
  10. Salehi, B., Shivaprasad Shetty, M., V. Anil Kumar, N., Zivkovic, J., Calina, D., Oana Docea, A. and others (2019) 'Veronica Plants - Drifting from Farm to Traditional Healing, Food Application, and Phytopharmacology', Molecules, 24(13), pp. 2454. doi:10.3390/molecules24132454 Preclinical
    https://doi.org/10.3390/molecules24132454
  11. HerbaZest (n.d.) 'Veronica (Speedwell)'. Available at: https://www.herbazest.com/herbs/veronica Traditional / reference
    https://www.herbazest.com/herbs/veronica
  12. Grundemann, C., Garcia-Kaufer, M., Sauer, B., Stangenberg, E., Konczol, M., Merfort, I., Zehl, M. and Huber, R (2012) 'Traditionally used Veronica officinalis inhibits proinflammatory mediators via the NF-kB signalling pathway in a human lung cell line', Journal of Ethnopharmacology, 145(1), pp. 118--126. doi:10.1016/j.jep.2012.10.039 Preclinical
    https://doi.org/10.1016/j.jep.2012.10.039

Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.