Omnia SanaPlant Comparison
Greater Celandine vs Bay Leaf
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
Greater Celandine and Bay Leaf: they share 11 indicated uses (arthritis / joint pain, back pain, bloating, …); 4 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Greater Celandine | Bay Leaf | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 1/10 | Comparable evidence |
| Back pain | 1/10 | 1/10 | Comparable evidence |
| Bloating | 1/10 | 1/10 | Comparable evidence |
| Cancer (anticancer research) | 2/10 | 2/10 | Comparable evidence |
| Headache | 1/10 | 1/10 | Comparable evidence |
| Indigestion | 1/10 | 1/10 | Comparable evidence |
| Infection (general) | 1/10 | 1/10 | Comparable evidence |
| Inflammation (general) | 1/10 | 1/10 | Comparable evidence |
| Pain (general) | 1/10 | 1/10 | Comparable evidence |
| Skin irritation | 1/10 | 1/10 | Comparable evidence |
| Wounds | 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
The biologically active and toxicologically important constituents.
Leaf essential oil dominated by 1,8-cineole and eugenol, giving the characteristic aroma and much of the antimicrobial and anti-inflammatory activity.
Contribute to the plant's anti-inflammatory and antioxidant activity.
Pharmacological Actions
Anti-inflammatory, antimicrobial and analgesic (preclinical)
Antispasmodic / choleretic bitter for upper-abdominal and biliary dyspepsia (indigestion, bloating, cramping) - oral use now restricted for safety
Antispasmodic / choleretic bitter for upper-abdominal and biliary dyspepsia (indigestion, bloating, cramping) - oral use now restricted for safety
Traditional & Indicated Uses
inferred from anti-inflammatory action
Antispasmodic / choleretic bitter for upper-abdominal and biliary dyspepsia (indigestion, bloating, cramping) - oral use now restricted for safety
inferred from anticancer action
Antispasmodic / choleretic bitter for upper-abdominal and biliary dyspepsia (indigestion, bloating, cramping) - oral use now restricted for safety
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from antispasmodic action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from analgesic action
inferred from digestive action
inferred from vulnerary action
inferred from anticancer action
inferred from neuroprotective action
inferred from analgesic action
inferred from digestive action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from neuroprotective action
inferred from anti-inflammatory action
Safety, Cautions & Contraindications
SERIOUS: oral greater celandine can cause acute idiosyncratic liver injury (hepatocellular hepatotoxicity with jaundice). Multiple reported cases - dozens of herb-induced liver injury reports in the literature, with continuing recent case reports - led regulators to restrict or suspend oral products. Do not take internally if you have any liver disease, and stop immediately and seek care at any sign of liver problems (jaundice, dark urine, upper-abdominal pain).
Generally safe when used in food amounts. Not toxic to people and safe to cook with. Leaves are very rigid and leathery - should be removed before eating as they don't soften with cooking and edges can be sharp. Insufficient reliable information about safety during pregnancy or breastfeeding - stick to food amounts. Large amounts of bay leaf tea may cause vomiting (emetic properties) and drowsiness (sedative properties). In high doses, bay laurel has cytotoxic activity. Some people may experience allergic contact dermatitis from bay laurel oil.
Duke (2002) notes antibacterial, anti-inflammatory, and antioxidant activities for bay laurel, primarily at the experimental level. The essential oil contains eugenol and 1,8-cineole as principal bioactive components. Traditional dosages in European phytotherapy include 1–3 g of dried leaf as a tea. Caution is advised as the essential oil may cause allergic contact dermatitis, and bay berries should not be confused with the less toxic leaves (Duke, 2002).
External Ids
Botanical Description
Branching perennial herb with soft, brittle, hairy stems that exude a distinctive bright orange-yellow latex (sap) when cut or broken. The leaves are deeply lobed, pale bluish-green beneath, giving a delicate, almost fern-like appearance. Small, four-petalled, bright yellow flowers are borne in loose umbel-like clusters.[4]
Evergreen shrub or small tree with dark green, glossy, aromatic leaves, smooth-edged and slightly wavy at the margin. Small, pale yellow-green flowers are borne in clusters in the leaf axils in spring, followed by small, dark purple-black berries on female trees.[11]
Habitat
Grows in shaded, nutrient-rich ground - hedgerows, walls, waste ground and woodland edges, often near old buildings; native to Europe and Western Asia and naturalised in North America.[4]
Native to the Mediterranean region; widely cultivated as a culinary herb and ornamental tree in warm-temperate and Mediterranean climates worldwide.[11]
Harvesting
The flowering aerial parts are cut in spring to summer; the fresh orange latex is collected by breaking a stem or leaf as needed for topical (wart) use. Given the documented hepatotoxicity of oral preparations, harvesting for internal use is not recommended.[4]
Leaves are picked year-round from established plants and used fresh or dried; berries/seed are collected once ripe in autumn.
Traditional Uses
Greater celandine has a long European folk history, reflected in its name 'tetterwort', as a topical remedy for warts and skin blemishes (the fresh orange latex dabbed directly on), and internally as a bitter choleretic digestive remedy for biliary and upper-abdominal dyspepsia - though oral use is now medically restricted because of documented liver injury.[4]
Bay leaf has an ancient Mediterranean culinary and medicinal history, used as a digestive carminative for indigestion and bloating, and topically and traditionally for muscle and joint pain and minor wounds; it remains one of the most widely used culinary herbs worldwide.[11]
Preparations
Fresh orange latex from a broken stem dabbed directly onto warts, the classic external folk use; kept well away from eyes, mucous membranes and broken skin.
Historically taken as an infusion or tincture for biliary dyspepsia, but oral use is now restricted in several jurisdictions due to hepatotoxicity risk and should only be considered under professional supervision, if at all.
Dried leaf infused in hot water as a traditional digestive tea.
Dosage
Because of a documented risk of acute liver injury, no internal dose is given here; oral use should be avoided, especially by anyone with liver disease, and any sign of jaundice, dark urine or upper-abdominal pain warrants immediate medical attention. Educational reference only, not a prescription.
Two clinical studies in healthy volunteers used an infusion prepared from 5 g of dried Laurus nobilis leaves in 100 mL of boiled water, taken once daily for 10 days. Traditional references suggest a smaller 1-3 g per cup up to three times daily; no EMA or WHO monograph exists for bay leaf. Educational reference only, not a prescription.
References
Lookalikes Review
Dangerous Lookalikes
Not documented
References & Sources
- Li, X.L., Sun, Y.P., Wang, M., Wang, Z.B. and Kuang, H.X (2024) 'Alkaloids in Chelidonium majus L.: a review of its phytochemistry, pharmacology and toxicology', Frontiers in Pharmacology, 15, pp. 1440979. doi:10.3389/fphar.2024.1440979 Traditional / reference
https://doi.org/10.3389/fphar.2024.1440979 - Koriem, K.M.M., Arbid, M.S. and Asaad, G.F (2012) 'Chelidonium majus leaves methanol extract and its chelidonine alkaloid ingredient reduce cadmium-induced nephrotoxicity in rats', Journal of Natural Medicines, 67(1), pp. 159-167. doi:10.1007/s11418-012-0667-6 Preclinical
https://doi.org/10.1007/s11418-012-0667-6 - Nawrot, R (2017) 'Defense-related Proteins from Chelidonium majus L. as Important Components of its Latex', Current Protein & Peptide Science, 18(8), pp. 864-880. doi:10.2174/1389203718666170406124013 Traditional / reference
https://doi.org/10.2174/1389203718666170406124013 - Gilca, M., Gaman, L., Panait, E., Stoian, I. and Atanasiu, V (2010) 'Chelidonium majus - an integrative review: traditional knowledge versus modern findings', Forschende Komplementarmedizin. doi:10.1159/000321397 Traditional / reference
https://doi.org/10.1159/000321397 - Popovic, A., Deljanin, M., Popovic, S., Todorovic, D., Djurdjevic, P., Matic, S., Stankovic, M., Avramovic, D. and Baskic, D (2021) 'Chelidonium majus crude extract induces activation of peripheral blood mononuclear cells and enhances their cytotoxic effect toward HeLa cells', International Journal of Environmental Health Research, 32(7), pp. 1554-1566. doi:10.1080/09603123.2021.1897534 Preclinical
https://doi.org/10.1080/09603123.2021.1897534 - Shen, L., Lee, S.A., Joo, J.C., Hong, E., Cui, Z.Y., Jo, E., Park, S.J. and Jang, H.J (2022) 'Chelidonium majus induces apoptosis of human ovarian cancer cells via ATF3-mediated regulation of Foxo3a by Tip60', Journal of Microbiology and Biotechnology, 32(4), pp. 493-503. doi:10.4014/jmb.2109.09030 Preclinical
https://doi.org/10.4014/jmb.2109.09030 - Deljanin, M., Nikolic, M., Baskic, D., Todorovic, D., Djurdjevic, P., Zaric, M., Stankovic, M., Todorovic, M., Avramovic, D. and Popovic, S (2016) 'Chelidonium majus crude extract inhibits migration and induces cell cycle arrest and apoptosis in tumor cell lines', Journal of Ethnopharmacology, 190, pp. 362-371. doi:10.1016/j.jep.2016.06.056 Preclinical
https://doi.org/10.1016/j.jep.2016.06.056 - Warowicka, A., Qasem, B., Dera-Szymanowska, A., Wolun-Cholewa, M., Florczak, P., Horst, N., Napierala, M., Szymanowski, K., Popenda, L., Bartkowiak, G., Florek, E., Gozdzicka-Jozefiak, A. and Mlynarz, P (2021) 'Effect of protoberberine-rich fraction of Chelidonium majus L. on endometriosis regression', Pharmaceutics, 13(7), pp. 931. doi:10.3390/pharmaceutics13070931 Preclinical
https://doi.org/10.3390/pharmaceutics13070931 - Kadan, G., Gozler, T. and Hesse, M (1992) '(+)-Norchelidonine from Chelidonium majus', Planta Medica, 58(5), pp. 477. doi:10.1055/s-2006-961523 Preclinical
https://doi.org/10.1055/s-2006-961523 - Musidlak, O., Warowicka, A., Broniarczyk, J., Adamczyk, D., Gozdzicka-Jozefiak, A. and Nawrot, R (2022) 'The activity of Chelidonium majus L. latex and its components on HPV reveal insights into the antiviral molecular mechanism', International Journal of Molecular Sciences, 23(16), pp. 9241. doi:10.3390/ijms23169241 Preclinical
https://doi.org/10.3390/ijms23169241 - Zhang, W., You, C., Wang, C., Fan, L., Wang, Y., Su, Y., Deng, Z. and Du, S (2014) 'One new alkaloid from Chelidonium majus L', Natural Product Research, 28(21), pp. 1873-1878. doi:10.1080/14786419.2014.953497 Preclinical
https://doi.org/10.1080/14786419.2014.953497 - Capistrano I, R., Wouters, A., Lardon, F., Gravekamp, C., Apers, S. and Pieters, L (2015) 'In vitro and in vivo investigations on the antitumour activity of Chelidonium majus', Phytomedicine, 22(14), pp. 1279-1287. doi:10.1016/j.phymed.2015.10.013 Preclinical
https://doi.org/10.1016/j.phymed.2015.10.013 - Teschke, R., Frenzel, C., Glass, X., Schulze, J. and Eickhoff, A (2012) 'Greater Celandine hepatotoxicity: a clinical review', Annals of Hepatology. doi:10.1016/s1665-2681(19)31408-5 Clinical study
https://doi.org/10.1016/s1665-2681(19)31408-5 - Ciornolutchii, V., Ismaiel, A., Sabo, C.M., Al Hajjar, N., Seicean, A. and Dumitrascu, D.L (2024) 'A Hidden Cause of Hypertransaminasemia: Liver Toxicity Caused by Chelidonium Majus L. Report of Two Cases of Herb-Induced Liver Injury and Literature Review', American Journal of Therapeutics, 31(4), pp. e382--e387. doi:10.1097/MJT.0000000000001708 Clinical study
https://doi.org/10.1097/MJT.0000000000001708
- Hammoodi, O.T., Alkhilani, M.A., Alhayani, W.A., Al-Nuaimy, W. and Tala'a, A.A (2024) 'Effects of Laurus nobilis Leaf Extract on Healing of Experimentally Induced Wounds in Rabbits', Veterinary Medicine International, 2024, pp. 2889480. doi:10.1155/2024/2889480 Preclinical
https://doi.org/10.1155/2024/2889480 - Caputo, L., Nazzaro, F., Souza, L.F., Aliberti, L., De Martino, L. and Fratianni, F (2017) 'Laurus nobilis: Composition of Essential Oil and Its Biological Activities', Molecules, 22(6), pp. 930. doi:10.3390/molecules22060930 Preclinical
https://doi.org/10.3390/molecules22060930 - Bourebaba, N., Kornicka-Garbowska, K., Marycz, K., Bourebaba, L. and Kowalczuk, A (2021) 'Laurus nobilis ethanolic extract attenuates hyperglycemia and hyperinsulinemia-induced insulin resistance in HepG2 cell line through the reduction of oxidative stress and improvement of mitochondrial biogenesis', Mitochondrion, 59, pp. 190-213. doi:10.1016/j.mito.2021.06.003 Preclinical
https://doi.org/10.1016/j.mito.2021.06.003 - Dobroslavic, E., Repajic, M., Dragovic-Uzelac, V. and Elez Garofulic, I (2022) 'Isolation of Laurus nobilis Leaf Polyphenols: A Review on Current Techniques and Future Perspectives', Foods, 11(2), pp. 235. doi:10.3390/foods11020235 Meta-analysis / review
https://doi.org/10.3390/foods11020235 - Chbili, C., Maoua, M., Zaouali, M., Selmi, M., Kacem, I. and Mrizek, N (2022) 'Evaluation of daily Laurus nobilis tea consumption on anxiety and stress biomarkers in healthy volunteers', Archives Italiennes de Biologie, 160(3-4), pp. 136-146. doi:10.12871/000398292022343 Clinical study
https://doi.org/10.12871/000398292022343 - Chbili, C., Maoua, M., Selmi, M., Mrad, S., Khairi, H. and Limem, K (2020) 'Evaluation of Daily Laurus nobilis Tea Consumption on Lipid Profile Biomarkers in Healthy Volunteers', Journal of the American College of Nutrition, 39(8), pp. 733-738. doi:10.1080/07315724.2020.1727787 Clinical study
https://doi.org/10.1080/07315724.2020.1727787 - Bouadid, I., Amssayef, A. and Eddouks, M (2023) 'Study of the Antihypertensive Effect of Laurus nobilis in Rats', Cardiovascular & Hematological Agents in Medicinal Chemistry, 21(1), pp. 42-54. doi:10.2174/1871525720666220512154041 Preclinical
https://doi.org/10.2174/1871525720666220512154041 - Mohammed, R.R., Omer, A.K., Yener, Z., Uyar, A. and Ahmed, A.K (2020) 'Biomedical effects of Laurus nobilis L. leaf extract on vital organs in streptozotocin-induced diabetic rats: Experimental research', Annals of Medicine and Surgery, 61, pp. 188-197. doi:10.1016/j.amsu.2020.11.051 Preclinical
https://doi.org/10.1016/j.amsu.2020.11.051 - Uchiyama, N., Matsunaga, K., Kiuchi, F., Honda, G., Tsubouchi, A. and Nakajima-Shimada, J (2002) 'Trypanocidal terpenoids from Laurus nobilis L', Chemical & Pharmaceutical Bulletin, 50(11), pp. 1514-1516. doi:10.1248/cpb.50.1514 Preclinical
https://doi.org/10.1248/cpb.50.1514 - Saab, A.M., Guerrini, A., Zeino, M., Wiench, B., Rossi, D. and Gambari, R (2015) 'Laurus nobilis L. Seed Extract Reveals Collateral Sensitivity in Multidrug-Resistant P-Glycoprotein-Expressing Tumor Cells', Nutrition and Cancer, 67(4), pp. 664-675. doi:10.1080/01635581.2015.1019632 Preclinical
https://doi.org/10.1080/01635581.2015.1019632 - Elansary HO, et al. Laurus nobilis: Composition of Essential Oil and Its Biological Activities. Biomolecules. 2018;8 (2018) ';8(3):98', 8(3). Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC6152719/ Traditional / reference
https://pmc.ncbi.nlm.nih.gov/articles/PMC6152719/ - Fernandes F, et al. Laurus nobilis Leaves and Fruits: A Review of Metabolite Composition and Interest in Human Health. Applied Sciences. 2023;13 (2023) ';13(7):4606', 13(7). Available at: https://www.mdpi.com/2076-3417/13/7/4606 Traditional / reference
https://www.mdpi.com/2076-3417/13/7/4606 - Ramos C, et al. Bay Leaf. In: Nonvitamin and Nonmineral Nutritional Supplements. Academic Press; 2019:269-276. https://pmc.ncbi.nlm.nih.gov/articles/PMC7152419/ (2019) ':269-276'. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC7152419/ Traditional / reference
https://pmc.ncbi.nlm.nih.gov/articles/PMC7152419/ - Singletary KW. Bay Leaf: Potential Health Benefits. Nutrition Today. 2021;55 (2021) ';55(4):184-193', 55(4). Available at: https://journals.lww.com/nutritiontodayonline/fulltext/2021/07000/bay_leaf__potential_health_benefits.8.aspx Traditional / reference
https://journals.lww.com/nutritiontodayonline/fulltext/2021/07000/bay_leaf__potential_health_benefits.8.aspx - University of Arizona Campus Arboretum. Medicinal Plant Virtual Tour - Bay Laurel. https://arboretum.arizona.edu/medicinal-plant-virtual-tour-bay-laurel. Available at: https://arboretum.arizona.edu/medicinal-plant-virtual-tour-bay-laurel Traditional / reference
https://arboretum.arizona.edu/medicinal-plant-virtual-tour-bay-laurel - 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 - Malaspina, P. and Betuzzi, F. and Ingegneri, M. and Smeriglio, A. and Cornara, L. and Trombetta, D (2022) 'Risk of Poisoning from Garden Plants: Misidentification between Laurel and Cherry Laurel', Toxins, 14(11), pp. 726. doi:10.3390/toxins14110726 Preclinical
https://doi.org/10.3390/toxins14110726 - Henriet, M. and Auquiere, J.P. and Moens, P (1974) 'Analysis and content of hydrocyanic acid by cutting, row and organographic zone of leaves of cherry laurel (Prunus laurocerasus L)', Journal de Pharmacie de Belgique, 29(5), pp. 437-43. Available at: https://pubmed.ncbi.nlm.nih.gov/4377277/ Preclinical
https://pubmed.ncbi.nlm.nih.gov/4377277/
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.