Omnia SanaPlant Comparison
Ginko vs Cowslip
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.
At a glance
Ginko and Cowslip: they share 3 indicated uses (arthritis / joint pain, inflammation (general), skin irritation); 2 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Ginko | Cowslip | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 1/10 | Comparable evidence |
| Inflammation (general) | 1/10 | 1/10 | Comparable evidence |
| Skin irritation | 1/10 | 1/10 | Comparable 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
Antioxidant flavonoids of the leaf, standardised in clinical extracts.
Unique diterpene and sesquiterpene lactones responsible for platelet-activating-factor antagonism and much of the neuroprotective and circulatory activity; also the basis of the bleeding-risk caution.
A neurotoxic compound present in the raw seed; the reason only cooked seed in small amounts, or standardised leaf extract, is used medicinally.
Pharmacological Actions
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from neuroprotective action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from sedative action
Safety, Cautions & Contraindications
Generally well tolerated at standard doses but notable interactions exist. Ginkgo has antiplatelet and anticoagulant effects and should not be combined with warfarin, aspirin, or other blood-thinning medications without medical supervision. May lower the seizure threshold — avoid in epilepsy. Possible side effects include headache, dizziness, and GI upset. The raw seeds contain ginkgotoxin and are toxic; only processed leaf extracts are used medicinally.
Duke (2002) rates ginkgo as + (downgraded from higher rating for safety concerns) while noting clinical evidence (score 2) for anti-aggregant (platelet-inhibitory), anti-Alzheimer, and antioxidant activities. Commission E approves ginkgo leaf extract for cognitive deficits, peripheral circulatory disorders, and vertigo. However, Duke emphasizes significant safety concerns: ginkgo substantially increases bleeding risk when combined with anticoagulants (warfarin, aspirin, NSAIDs) and may cause spontaneous bleeding at high doses alone. Dose: 120–240 mg standardized extract (EGb 761) daily. Contraindicated with anticoagulants without medical supervision (Duke, 2002).
Allergy risk: avoid if you’re allergic to cowslip/other Primula species (European Medicines Agency, 2012). Stomach sensitivity: use caution if you have gastritis or a stomach ulcer—cowslip can upset the stomach in some people (European Medicines Agency, 2012). Possible side effects (especially high dose): nausea, vomiting, diarrhea; allergic reactions can happen (European Medicines Agency, 2012). Pregnancy/breastfeeding: not recommended due to lack of good safety data (European Medicines Agency, 2012). Kids: many preparations are not recommended under 12 (and some root extracts under 4) unless a labeled product specifically allows it (European Medicines Agency, 2012).
Duke (2002) provides clinical evidence (score 2) for cowslip's expectorant and secretolytic activities, consistent with Commission E approval for bronchitis and cough with mucus. Dose: 0.5–1 g root or 1–2 g herb as tea three times daily. Saponins in the root are responsible for the expectorant action. Duke warns that the plant may cause hemolysis in large doses due to saponin content, and caution is warranted in individuals with aspirin sensitivity due to phenolic acid content (Duke, 2002).
External Ids
Botanical Description
Ancient deciduous tree, a 'living fossil' with no close living relatives, bearing distinctive fan-shaped leaves with parallel forking veins that turn brilliant gold in autumn. The tree is dioecious (separate male and female trees); female trees bear fleshy, foul-smelling seed coats surrounding an edible inner nut (ginkgo nut) once the outer flesh is removed.[2]
Low perennial herb (Primulaceae) forming a basal rosette of wrinkled, oval, softly hairy leaves that taper abruptly to a winged stalk. A single leafless flowering stem rises from the rosette bearing a one-sided umbel of small, fragrant, deep yellow, funnel-shaped flowers with orange spots at the throat, nodding on slender pedicels.[10]
Habitat
Native to China, where a small number of wild populations survive; now cultivated worldwide as a resilient, pollution-tolerant ornamental and medicinal tree.
Native across Europe and western Asia, growing in unimproved, species-rich grassland, meadows, pastures, open woodland and hedge banks on calcareous or well-drained soils.[10]
Harvesting
Leaves are picked in late summer to autumn, when flavonoid and terpenoid content is highest, and processed into standardised extracts; the inner seed is collected in autumn from fallen fruit, with the malodorous outer flesh removed (handled with gloves, as it can irritate skin).
Flowers are picked in spring as they open; the root/rhizome is dug in autumn.
Traditional Uses
Ginkgo leaf and seed have a long East Asian tradition: the seed used in traditional Chinese medicine (in small, cooked amounts) for respiratory complaints, and the leaf, though a more recent addition to Western herbalism, now one of the most extensively studied botanicals for cognitive and peripheral circulatory support, reflecting decades of standardised-extract clinical research.[2]
Cowslip has a long European folk tradition as an expectorant remedy for coughs and bronchial catarrh, and the flowers have traditionally been used as a mild sedative and for headache. Modern research on its saponin-rich root supports secretolytic (mucus-thinning) expectorant activity, and its flowers are rich in antioxidant phenolics.[1, 6]
Preparations
Dosage
Clinical trials for cognitive and circulatory support commonly use around 120-240 mg of standardised leaf extract daily, in divided doses. Educational reference only, not a prescription.
References
Drug Class Interactions
Pairings
Ginkgo and garlic both reduce blood clotting/platelet stickiness, so taking them together may add up and raise the risk of bruising or bleeding — use caution, especially before surgery or alongside blood-thinning drugs.[16, 19]
Ginkgo and ginger both reduce blood clotting/platelet stickiness, so taking them together may add up and raise the risk of bruising or bleeding — use caution, especially before surgery or alongside blood-thinning drugs.[19, 20]
Ginkgo and feverfew both reduce blood clotting/platelet stickiness, so taking them together may add up and raise the risk of bruising or bleeding — use caution, especially before surgery or alongside blood-thinning drugs.[19, 21]
Ginkgo and ginseng both reduce blood clotting/platelet stickiness, so taking them together may add up and raise the risk of bruising or bleeding — use caution, especially before surgery or alongside blood-thinning drugs.[19]
Not documented
Lookalikes Review
References & Sources
- Tan, M.S., Yu, J.T., Tan, C.C., Wang, H.F. et al (2015) 'Efficacy and adverse effects of Ginkgo biloba for cognitive impairment and dementia: a systematic review and meta-analysis', Journal of Alzheimer's Disease, 43(2), pp. 589-603. doi:10.3233/JAD-140837 Meta-analysis / review
https://doi.org/10.3233/JAD-140837 - Singh, S.K., Srivastav, S., Castellani, R.J., Plascencia-Villa, G. and Perry, G (2019) 'Neuroprotective and Antioxidant Effect of Ginkgo biloba Extract Against AD and Other Neurological Disorders', Neurotherapeutics, 16(3), pp. 666-674. doi:10.1007/s13311-019-00767-8 Traditional / reference
https://doi.org/10.1007/s13311-019-00767-8 - Diamond, B.J. and Bailey, M.R (2013) 'Ginkgo biloba: indications, mechanisms, and safety', Psychiatric Clinics of North America, 36(1), pp. 73-83. doi:10.1016/j.psc.2012.12.006 Traditional / reference
https://doi.org/10.1016/j.psc.2012.12.006 - DeKosky, S.T., Williamson, J.D., Fitzpatrick, A.L. et al (2008) 'Ginkgo biloba for prevention of dementia: a randomized controlled trial', 300(19), pp. 2253--2262. doi:10.1001/jama.2008.683 Randomized trial
https://doi.org/10.1001/jama.2008.683 - Zhu, C., Liu, J., Lin, J., Xu, J. and Yu, E (2024) 'Investigating the effects of Ginkgo biloba leaf extract on cognitive function in Alzheimer's disease', CNS Neuroscience & Therapeutics, 30(9), pp. e14914. doi:10.1111/cns.14914 Preclinical
https://doi.org/10.1111/cns.14914 - Diamond, B.J., Shiflett, S.C., Feiwel, N., Matheis, R.J., Noskin, O., Richards, J.A. and Schoenberger, N.E (2000) 'Ginkgo biloba extract: mechanisms and clinical indications', Archives of Physical Medicine and Rehabilitation, 81(5), pp. 668-678. doi:10.1016/s0003-9993(00)90052-2 Meta-analysis / review
https://doi.org/10.1016/s0003-9993(00)90052-2 - Dubey, A.K., Shankar, P.R., Upadhyaya, D. and Deshpande, V.Y (2004) 'Ginkgo biloba--an appraisal', Kathmandu University Medical Journal, 2(3), pp. 225-229. Meta-analysis / review
https://scholar.google.com/scholar?q=Ginkgo%20biloba--an%20appraisal - Christen, Y (2004) 'Ginkgo biloba and neurodegenerative disorders', Frontiers in Bioscience, 9, pp. 3091-3104. doi:10.2741/1462 Meta-analysis / review
https://doi.org/10.2741/1462 - Sereda, M., Xia, J., Scutt, P., Hilton, M.P., El Refaie, A. and Hoare, D.J (2022) 'Ginkgo biloba for tinnitus', Cochrane Database of Systematic Reviews, 11, pp. CD013514. doi:10.1002/14651858.CD013514.pub2 Meta-analysis / review
https://doi.org/10.1002/14651858.CD013514.pub2 - DeFeudis, F.V. and Drieu, K (2000) 'Ginkgo biloba extract (EGb 761) and CNS functions: basic studies and clinical applications', Current Drug Targets, 1(1), pp. 25-58. doi:10.2174/1389450003349380 Meta-analysis / review
https://doi.org/10.2174/1389450003349380 - Xie, L., Zhu, Q. and Lu, J (2022) 'Can we use Ginkgo biloba extract to treat Alzheimer's disease? Lessons from preclinical and clinical studies', Cells, 11(3), pp. 479. doi:10.3390/cells11030479 Meta-analysis / review
https://doi.org/10.3390/cells11030479 - von Gunten, A., Schlaefke, S. and Uberla, K (2015) 'Efficacy of Ginkgo biloba extract EGb 761 in dementia with behavioural and psychological symptoms: a systematic review', World Journal of Biological Psychiatry, 17(8), pp. 622-633. doi:10.3109/15622975.2015.1066513 Meta-analysis / review
https://doi.org/10.3109/15622975.2015.1066513 - World Health Organization (1999) 'WHO Monographs on Selected Medicinal Plants'. Traditional / reference
https://scholar.google.com/scholar?q=WHO%20Monographs%20on%20Selected%20Medicinal%20Plants - Kanowski, S., Herrmann, W.M., Stephan, K., Wierich, W. and Hörr, R (1996) 'Proof of efficacy of the ginkgo biloba special extract EGb 761 in outpatients suffering from mild to moderate primary degenerative dementia of the Alzheimer type or multi-infarct dementia', 29(2), pp. 47--56. doi:10.1016/s0944-7113(97)80021-9 Randomized trial
https://doi.org/10.1016/s0944-7113(97)80021-9 - 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 - Izzo, A.A. and Ernst, E (2009) 'Interactions between herbal medicines and prescribed drugs: an updated systematic review', Drugs, 69(13), pp. 1777-1798. doi:10.2165/11317010-000000000-00000 Meta-analysis / review
https://doi.org/10.2165/11317010-000000000-00000 - Bent, S., Goldberg, H., Padula, A. and Avins, A.L (2005) 'Spontaneous bleeding associated with ginkgo biloba: a case report and systematic review of the literature', Journal of General Internal Medicine, 20(7), pp. 657-661. doi:10.1111/j.1525-1497.2005.0121.x Meta-analysis / review
https://doi.org/10.1111/j.1525-1497.2005.0121.x - Diamond, B.J. and Bailey, M.R (2013) 'Ginkgo biloba: indications, mechanisms, and safety', Psychiatric Clinics of North America, 36(1), pp. 73-83. doi:10.1016/j.psc.2012.12.006 Meta-analysis / review
https://doi.org/10.1016/j.psc.2012.12.006 - Ang-Lee, M.K., Moss, J. and Yuan, C.S (2001) 'Herbal medicines and perioperative care', JAMA, 286(2), pp. 208-216. doi:10.1001/jama.286.2.208 Meta-analysis / review
https://doi.org/10.1001/jama.286.2.208 - Jiang, X., Williams, K.M., Liauw, W.S., Ammit, A.J., Roufogalis, B.D., Duke, C.C., Day, R.O. and McLachlan, A.J (2005) 'Effect of ginkgo and ginger on the pharmacokinetics and pharmacodynamics of warfarin in healthy subjects', British Journal of Clinical Pharmacology, 59(4), pp. 425-432. doi:10.1111/j.1365-2125.2005.02322.x Randomized trial
https://doi.org/10.1111/j.1365-2125.2005.02322.x - Groenewegen, W.A. and Heptinstall, S (1990) 'A comparison of the effects of an extract of feverfew and parthenolide, a component of feverfew, on human platelet activity in-vitro', Journal of Pharmacy and Pharmacology, 42(8), pp. 553-557. doi:10.1111/j.2042-7158.1990.tb07057.x Preclinical
https://doi.org/10.1111/j.2042-7158.1990.tb07057.x
- Veldman, J., Bordewijk, E., Lloyd, A.R., Vlieger, A.M. and others (2023) 'Mechanistic Evidence of Andrographis paniculata, Pelargonium sidoides, Echinacea Species and a Combination of Hedera helix, Primula veris/elatior and Thymus vulgaris/zygis in the Treatment of Acute, Uncomplicated Respiratory Tract Infections: A Systematic Literature Review and Expert Interviews', Pharmaceuticals (Basel), 16(9), pp. 1206. doi:10.3390/ph16091206 Meta-analysis / review
https://doi.org/10.3390/ph16091206 - Baczek, K.B., Kosakowska, O., Przybyl, J.L., Pioro-Jabrucka, E. and others (2017) 'Phenolics in Primula veris L. and Primula elatior (L.) Hill Raw Materials', International Journal of Analytical Chemistry, 2017, pp. 2871579. doi:10.1155/2017/2871579 Preclinical
https://doi.org/10.1155/2017/2871579 - Prokofiev, A.B., Latypova, G.M., Bondarenko, T.A., Romanenko, E.B. and others (2023) 'Solid herbal extract of Primula veris L. improves morphofunctional condition of rats' myocardium in chronic alcohol intoxication', Journal of Traditional and Complementary Medicine, 13(3), pp. 306-314. doi:10.1016/j.jtcme.2023.02.006 Preclinical
https://doi.org/10.1016/j.jtcme.2023.02.006 - Tarapatskyy, M., Gumienna, A., Sowa, P., Kapusta, I. and Puchalski, C (2021) 'Bioactive Phenolic Compounds from Primula veris L.: Influence of the Extraction Conditions and Purification', Molecules, 26(4), pp. 997. doi:10.3390/molecules26040997 Preclinical
https://doi.org/10.3390/molecules26040997 - Trendafilova, A., Ivanova, V., Todorova, M., Aneva, I. and others (2025) 'Phytochemical Characterization and Anti-Biofilm Activity of Primula veris L. Roots', Molecules, 30(8), pp. 1702. doi:10.3390/molecules30081702 Preclinical
https://doi.org/10.3390/molecules30081702 - Colombo, P.S., Flamini, G., Rodondi, G., Giuliani, C. and others (2017) 'Phytochemistry of European Primula species', Phytochemistry, 143, pp. 132-144. doi:10.1016/j.phytochem.2017.07.005 Traditional / reference
https://doi.org/10.1016/j.phytochem.2017.07.005 - Latypova, G.M., Bondarenko, T.A., Katayev, V.A., Romanenko, E.B. and others (2019) 'Composition and cardioprotective effects of Primula veris L. solid herbal extract in experimental chronic heart failure', Phytomedicine, 54, pp. 17-26. doi:10.1016/j.phymed.2018.09.015 Preclinical
https://doi.org/10.1016/j.phymed.2018.09.015 - Brys, R. and Jacquemyn, H (2015) 'Disruption of the distylous syndrome in Primula veris', Annals of Botany, 115(1), pp. 27-39. doi:10.1093/aob/mcu211 Preclinical
https://doi.org/10.1093/aob/mcu211 - Muller, A., Ganzera, M. and Stuppner, H (2006) 'Analysis of phenolic glycosides and saponins in Primula elatior and Primula veris (primula root) by liquid chromatography, evaporative light scattering detection and mass spectrometry', Journal of Chromatography A, 1112(1-2), pp. 218-223. doi:10.1016/j.chroma.2005.10.067 Preclinical
https://doi.org/10.1016/j.chroma.2005.10.067 - Graikou, K., Damianakos, H., Ganos, C., Syklowska-Baranek, K. and others (2023) 'Comparative Phytochemical Analyses of Flowers from Primula veris subsp. veris Growing Wild and from Ex Situ Cultivation in Greece', Foods, 12(13), pp. 2623. doi:10.3390/foods12132623 Preclinical
https://doi.org/10.3390/foods12132623 - European Medicines Agency (2012) 'European Union herbal monograph on Primula veris L'. Traditional / reference
https://scholar.google.com/scholar?q=European%20Union%20herbal%20monograph%20on%20Primula%20veris%20L - Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
https://powo.science.kew.org - Wicke, L (2007) 'Primula veris in the treatment of upper respiratory infections', pp. 109--116. Traditional / reference
https://scholar.google.com/scholar?q=Primula%20veris%20in%20the%20treatment%20of%20upper%20respiratory%20infections - 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 - 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 - 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
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.