Plant Comparison
Bearberry vs American Cranberry
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
Bearberry and American Cranberry: both belong to the Ericaceae family; they share 3 indicated uses (infection (general), urinary support, urinary tract infection (uti)); 1 pharmacological action in common.
Evidence face-off — shared uses
| Condition | Bearberry | American Cranberry | Verdict |
|---|---|---|---|
| Infection (general) | 6/10 | 9/10 | Stronger for American Cranberry |
| Urinary support | 6/10 | 8/10 | Stronger for American Cranberry |
| Urinary tract infection (UTI) | 6/10 | 10/10 | Stronger for American Cranberry |
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
Hydroquinone glycoside; hydrolysed and excreted as antibacterial hydroquinone in the urine.
Up to ~20%; responsible for the astringency and for gastric irritation at high doses.
The constituents responsible for the anti-adhesion effect against uropathogenic E. coli.
Antioxidant polyphenols of the berry.
Contribute to the acidity and antioxidant capacity.
Present in relatively high amounts; relevant to kidney-stone risk.
Pharmacological Actions
Arbutin, the hydroquinone glucoside characteristic of bearberry (Arctostaphylos uva-ursi), shows antiproliferative and pro-apoptotic activity across multiple cancer types (preclinical).
Antibacterial in the urinary tract (arbutin is converted to antibacterial hydroquinone, favoured by alkaline urine); Urinary antiseptic for mild, uncomplicated lower urinary tract infection / cystitis (short-term)
Traditional & Indicated Uses
The bearberry constituent arbutin suppresses osteosarcoma proliferation, migration and invasion via miR-338-3p/MTHFD1L and AKT/mTOR inactivation, and has documented anticancer potential against bladder, breast, colon, liver and other cancers (preclinical).
Urinary antiseptic for mild, uncomplicated lower urinary tract infection / cystitis (short-term)
inferred from astringent action
inferred from urinary-antiseptic action
Antibacterial in the urinary tract (arbutin is converted to antibacterial hydroquinone, favoured by alkaline urine); Urinary antiseptic for mild, uncomplicated lower urinary tract infection / cystitis (short-term)
Prevention of recurrent urinary tract infections (UTI), especially in women
inferred from urinary-antiseptic action
Safety, Cautions & Contraindications
Short-term use only: not for more than 1 week at a time and not more than about 5 times per year. If symptoms persist beyond ~4 days, worsen, or are accompanied by fever, blood in the urine or pain, seek medical care.
Contraindicated in pregnancy and breastfeeding and not for use in children or adolescents under 18 years.
Best supported for PREVENTION of recurrent UTIs, not for treating an active infection; an established UTI needs proper medical assessment and, usually, antibiotics.
May interact with the anticoagulant warfarin (evidence is conflicting); people taking warfarin should be cautious and consult their clinician.
High in oxalates; people with a history of kidney stones should avoid large or prolonged intake. Many cranberry juices are also high in sugar.
External Ids
Botanical Description
Low, mat-forming evergreen shrub with trailing, woody stems that root as they spread. The leaves are small, leathery, spatula-shaped (spoon-shaped), glossy dark green above and paler beneath, with a smooth, untoothed margin and a rounded tip. Small, urn-shaped, pink-and-white flowers hang in short clusters in spring, followed by bright red, mealy berries.[11]
Low, trailing, evergreen woody vine with small, wiry stems and small, oval, leathery leaves. Small, pink, four-petalled flowers with reflexed petals give way to round to oblong, tart red berries.
Habitat
Grows on dry, acidic, sandy or rocky ground in open woodland, heath, moorland and mountain slopes across the northern hemisphere (Europe, Asia and North America), often in exposed, cold, upland or subarctic sites.[11]
Grows in acidic bogs, wetlands and sandy peat soils; native to North America and now widely cultivated commercially, especially in flooded bogs.
Harvesting
The leaves are gathered in autumn to early spring (outside the flowering and fruiting season), when arbutin content is at its highest, and dried carefully to preserve the glycoside.[11]
Berries are harvested in autumn when fully red, either dry-picked or by flooding the bog so the berries float (wet harvest) for collection.
Traditional Uses
Bearberry leaf is a long-established European folk and official (EU herbal monograph) remedy for mild, uncomplicated lower urinary tract infections and cystitis, used short-term as a urinary antiseptic; it has also been used traditionally as an astringent for mild diarrhoea.[11]
Cranberry has a long Native American and North American folk tradition as a food and remedy for urinary complaints, an association now well supported by modern research showing its A-type proanthocyanidins prevent E. coli from adhering to the urinary tract lining, making it most useful for prevention of recurrent UTIs rather than treatment of an active infection.[13]
Preparations
Dried leaf macerated in cold water for several hours, which extracts less tannin (reducing gastric irritation) than a hot infusion; the preferred traditional preparation.
Dried leaf infused or lightly decocted in hot water; alkalinising the urine (e.g. with dietary measures) is traditionally recommended alongside use, since arbutin's antibacterial action requires alkaline urine.
Dosage
The EU herbal monograph describes traditional use of about 3 g dried leaf per cup, up to four times daily, for no more than one week at a time and no more than about five times a year. Educational reference only, not a prescription.
Clinical research commonly uses around 36 mg PAC daily (standardized extract) or 240-300 mL unsweetened juice daily for UTI prevention. Educational reference only, not a prescription.
References
Lookalikes Review
Dangerous Lookalikes
Not documented
Drug Class Interactions
Not documented
References & Sources
- Dell'Annunziata, F. and Cometa, S. and Della Marca, R. and Busto, F. and Folliero, V. and Franci, G. and Galdiero, M. and De Giglio, E. and De Filippis, A (2022) 'In Vitro Antibacterial and Anti-Inflammatory Activity of Arctostaphylos uva-ursi Leaf Extract against Cutibacterium acnes', Pharmaceutics, 14(9), pp. 1952. doi:10.3390/pharmaceutics14091952 Preclinical
https://doi.org/10.3390/pharmaceutics14091952 - de Arriba, S.G. and Naser, B. and Nolte, K.U (2013) 'Risk assessment of free hydroquinone derived from Arctostaphylos uva-ursi folium herbal preparations', International Journal of Toxicology, 32(6), pp. 442-453. doi:10.1177/1091581813507721 Preclinical
https://doi.org/10.1177/1091581813507721 - Kravchenko, G. and Krasilnikova, O. and Raal, A. and Mazen, M. and Chaika, N. and Kireyev, I. and Grytsyk, A. and Koshovyi, O (2022) 'Arctostaphylos uva-ursi L. leaves extract and its modified cysteine preparation for the management of insulin resistance: chemical analysis and bioactivity', Natural Products and Bioprospecting, 12(1), pp. 30. doi:10.1007/s13659-022-00352-1 Preclinical
https://doi.org/10.1007/s13659-022-00352-1 - Sugier, P. and Seczyk, L. and Sugier, D. and Krawczyk, R. and Wojcik, M. and Czarnecka, J. and Okon, S. and Plak, A (2021) 'Chemical Characteristics and Antioxidant Activity of Arctostaphylos uva-ursi L. Spreng. at the Southern Border of the Geographical Range of the Species in Europe', Molecules, 26(24), pp. 7692. doi:10.3390/molecules26247692 Preclinical
https://doi.org/10.3390/molecules26247692 - Sugier, P. and Seczyk, L. and Sugier, D (2022) 'Variation in Population and Solvents as Factors Determining the Chemical Composition and Antioxidant Potential of Arctostaphylos uva-ursi (L.) Spreng. Leaf Extracts', Molecules, 27(7), pp. 2247. doi:10.3390/molecules27072247 Preclinical
https://doi.org/10.3390/molecules27072247 - Panusa, A. and Petrucci, R. and Marrosu, G. and Multari, G. and Gallo, F.R (2015) 'UHPLC-PDA-ESI-TOF/MS metabolic profiling of Arctostaphylos pungens and Arctostaphylos uva-ursi. A comparative study of phenolic compounds from leaf methanolic extracts', Phytochemistry, 115, pp. 79-88. doi:10.1016/j.phytochem.2015.01.002 Preclinical
https://doi.org/10.1016/j.phytochem.2015.01.002 - Hudek Turkovic, A., Gunjaca, M., Marjanovic, M., Lovric, M., Butorac, A., Rasic, D., Peraica, M., Vujcic Bok, V., Sola, I., Rusak, G. and Durgo, K (2022) 'Proteome changes in human bladder T24 cells induced by hydroquinone derived from Arctostaphylos uva-ursi herbal preparation', Journal of Ethnopharmacology, pp. 2022. doi:10.1016/j.jep.2022.115092 Traditional / reference
https://doi.org/10.1016/j.jep.2022.115092 - Beaux, D. and Fleurentin, J. and Mortier, F (1999) 'Effect of extracts of Orthosiphon stamineus Benth, Hieracium pilosella L., Sambucus nigra L. and Arctostaphylos uva-ursi (L.) Spreng. in rats', Phytotherapy Research, 13(3), pp. 222-225. doi:10.1002/(SICI)1099-1573(199905)13:3<222::AID-PTR447>3.0.CO;2-P Preclinical
https://doi.org/10.1002/(SICI)1099-1573(199905)13:3<222::AID-PTR447>3.0.CO;2-P - Seczyk, L. and Sugier, D. and Sugier, P (2024) 'Effect of the Type of Herbal Preparations (Powdered Plant Material vs. Dry Ethanolic Extracts) on the Bioaccessibility of Bearberry (Arctostaphylos uva-ursi (L.) Spreng.) Phytochemicals in Simulated Digestion Conditions', Molecules, 29(24), pp. 5968. doi:10.3390/molecules29245968 Preclinical
https://doi.org/10.3390/molecules29245968 - Wrona, M. and Blasco, S. and Becerril, R. and Nerin, C. and Sales, E. and Asensio, E (2018) 'Antioxidant and antimicrobial markers by UPLC-ESI-Q-TOF-MS of a new multilayer active packaging based on Arctostaphylos uva-ursi', Talanta, 196, pp. 498-509. doi:10.1016/j.talanta.2018.12.057 Preclinical
https://doi.org/10.1016/j.talanta.2018.12.057 - European Medicines Agency (HMPC) (2018) 'European Union herbal monograph on Arctostaphylos uva-ursi (L.) Spreng., folium (Uvae ursi folium)'. Available at: https://www.ema.europa.eu/en/medicines/herbal/uvae-ursi-folium Traditional / reference
https://www.ema.europa.eu/en/medicines/herbal/uvae-ursi-folium - Braga, V.C.C., Pianetti, G.A. and Cesar, I.C (2020) 'Comparative stability of arbutin in Arctostaphylos uva-ursi by a new comprehensive stability-indicating HPLC method', Phytochemical Analysis, 31(6), pp. 884--891. doi:10.1002/pca.2953 Preclinical
https://doi.org/10.1002/pca.2953 - Qin, D., Liu, J., Guo, W., Ju, T., Fu, S., Liu, D. and Hu, G (2024) 'Arbutin alleviates intestinal colitis by regulating neutrophil extracellular traps formation and microbiota composition', Phytomedicine. doi:10.1016/j.phymed.2024.155741 Preclinical
https://doi.org/10.1016/j.phymed.2024.155741 - ESCOP (European Scientific Cooperative on Phytotherapy) (n.d.) 'Uvae ursi folium (Bearberry Leaf) monograph', pp. com. Available at: https://www.escop.com/downloads/bearberry-leaf/ Traditional / reference
https://www.escop.com/downloads/bearberry-leaf/ - Zhang, B., Zeng, M., Li, B., Kan, Y., Wang, S., Cao, B. and others (2021) 'Arbutin attenuates LPS-induced acute kidney injury by inhibiting inflammation and apoptosis via the PI3K/Akt/Nrf2 pathway', Phytomedicine. doi:10.1016/j.phymed.2021.153466 Preclinical
https://doi.org/10.1016/j.phymed.2021.153466 - Nahar, L. and Al-Groshi, A. and Kumar, A. and Sarker, S.D (2022) 'Arbutin: Occurrence in Plants, and Its Potential as an Anticancer Agent', Molecules, 27(24), pp. 8786. doi:10.3390/molecules27248786 Preclinical
https://doi.org/10.3390/molecules27248786 - Wang, C.-Q. and Wang, X.-M. and Li, B.-L. and Zhang, Y.-M. and Wang, L (2020) 'Arbutin suppresses osteosarcoma progression via miR-338-3p/MTHFD1L and inactivation of the AKT/mTOR pathway', FEBS Open Bio, 11(1), pp. 289-299. doi:10.1002/2211-5463.13024 Preclinical
https://doi.org/10.1002/2211-5463.13024 - Gagyor, I., Hummers, E., Schmiemann, G., Friede, T., Pfeiffer, S., Afshar, K. and Bleidorn, J (2021) 'Herbal treatment with uva ursi extract versus fosfomycin in women with uncomplicated urinary tract infection in primary care: a randomized controlled trial', Clinical Microbiology and Infection, 27(10), pp. 1441--1447. doi:10.1016/j.cmi.2021.05.032 Randomized trial
https://doi.org/10.1016/j.cmi.2021.05.032 - Moore, M., Trill, J., Simpson, C., Webley, F., Radford, M., Stanton, L. and others (2019) 'Uva-ursi extract and ibuprofen as alternative treatments for uncomplicated urinary tract infection in women (ATAFUTI): a factorial randomized trial', Clinical Microbiology and Infection, 25(8), pp. 973--980. doi:10.1016/j.cmi.2019.01.011 Randomized trial
https://doi.org/10.1016/j.cmi.2019.01.011 - ScienceDirect Topics (pharmacognosy) 'Arctostaphylos Uva-Ursi - an overview'. Available at: https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/arctostaphylos-uva-ursi Traditional / reference
https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/arctostaphylos-uva-ursi - North Carolina Extension Gardener Plant Toolbox 'Buxus sempervirens (Common Boxwood)'. Available at: https://plants.ces.ncsu.edu/plants/buxus-sempervirens/ Traditional / reference
https://plants.ces.ncsu.edu/plants/buxus-sempervirens/
- Williams, G., Hahn, D., Stephens, J.H., Craig, J.C. and others (2023) 'Cranberries for preventing urinary tract infections', Cochrane Database of Systematic Reviews, 4(4), pp. CD001321. doi:10.1002/14651858.CD001321.pub6 Meta-analysis / review
https://doi.org/10.1002/14651858.CD001321.pub6 - Mantzorou, M. and Giaginis, C (2018) 'Cranberry Consumption Against Urinary Tract Infections: Clinical State-of-the-Art and Future Perspectives', Current Pharmaceutical Biotechnology, 19(13), pp. 1049-1063. doi:10.2174/1389201020666181206104129 Meta-analysis / review
https://doi.org/10.2174/1389201020666181206104129 - Fu, Z., Liska, D., Talan, D. and Chung, M (2017) 'Cranberry Reduces the Risk of Urinary Tract Infection Recurrence in Otherwise Healthy Women: A Systematic Review and Meta-Analysis', The Journal of Nutrition, 147(12), pp. 2282-2288. doi:10.3945/jn.117.254961 Meta-analysis / review
https://doi.org/10.3945/jn.117.254961 - Xia, J.Y., Yang, C., Xu, D.F., Xia, H. and others (2021) 'Consumption of cranberry as adjuvant therapy for urinary tract infections in susceptible populations: A systematic review and meta-analysis with trial sequential analysis', PLoS One, 16(9), pp. e0256992. doi:10.1371/journal.pone.0256992 Meta-analysis / review
https://doi.org/10.1371/journal.pone.0256992 - Maki, K.C., Kaspar, K.L., Khoo, C., Derrig, L.H. and others (2016) 'Consumption of a cranberry juice beverage lowered the number of clinical urinary tract infection episodes in women with a recent history of urinary tract infection', The American Journal of Clinical Nutrition, 103(6), pp. 1434-1442. doi:10.3945/ajcn.116.130542 Randomized trial
https://doi.org/10.3945/ajcn.116.130542 - Babar, A., Moore, L., Leblanc, V., Dudonne, S. and others (2021) 'High dose versus low dose standardized cranberry proanthocyanidin extract for the prevention of recurrent urinary tract infection in healthy women: a double-blind randomized controlled trial', BMC Urology, 21(1), pp. 44. doi:10.1186/s12894-021-00811-w Randomized trial
https://doi.org/10.1186/s12894-021-00811-w - Perez-Lopez, F.R., Haya, J. and Chedraui, P (2009) 'Vaccinium macrocarpon: an interesting option for women with recurrent urinary tract infections and other health benefits', Journal of Obstetrics and Gynaecology Research, 35(4), pp. 630-639. doi:10.1111/j.1447-0756.2009.01026.x Meta-analysis / review
https://doi.org/10.1111/j.1447-0756.2009.01026.x - Nemzer, B.V., Al-Taher, F., Yashin, A., Revelsky, I. and others (2022) 'Cranberry: Chemical Composition, Antioxidant Activity and Impact on Human Health: Overview', Molecules, 27(5), pp. 1503. doi:10.3390/molecules27051503 Meta-analysis / review
https://doi.org/10.3390/molecules27051503 - Davidson, E., Zimmermann, B.F., Jungfer, E. and Chrubasik-Hausmann, S (2014) 'Prevention of urinary tract infections with Vaccinium products', Phytotherapy Research, 28(3), pp. 465-470. doi:10.1002/ptr.5047 Meta-analysis / review
https://doi.org/10.1002/ptr.5047 - Tsiakoulias, E., Gravas, S., Hadjichristodoulou, C., Oikonomou, K.G. and others (2024) 'Randomized, placebo-controlled, double-blinded study of prophylactic cranberries use in women with recurrent uncomplicated cystitis', World Journal of Urology, 42(1), pp. 27. doi:10.1007/s00345-023-04741-0 Randomized trial
https://doi.org/10.1007/s00345-023-04741-0 - Gonzalez de Llano, D., Moreno-Arribas, M.V. and Bartolome, B (2020) 'Cranberry Polyphenols and Prevention against Urinary Tract Infections: Relevant Considerations', Molecules. doi:10.3390/molecules25153523 Traditional / reference
https://doi.org/10.3390/molecules25153523 - National Center for Complementary and Integrative Health (NCCIH) (2020) 'Cranberry: Usefulness and Safety'. Available at: https://www.nccih.nih.gov/health/cranberry Traditional / reference
https://www.nccih.nih.gov/health/cranberry - Moro, C., Phelps, C., Veer, V., Jones, M., Glasziou, P., Clark, J., Tikkinen, K.A.O. and Scott, A.M (2024) 'Cranberry Juice, Cranberry Tablets, or Liquid Therapies for Urinary Tract Infection: A Systematic Review and Network Meta-analysis', European Urology Focus. doi:10.1016/j.euf.2024.07.002 Meta-analysis / review
https://doi.org/10.1016/j.euf.2024.07.002 - Aston, J.L., Lodolce, A.E. and Shapiro, N.L (2006) 'Interaction between warfarin and cranberry juice', Pharmacotherapy, 26(9), pp. 1314-1319. doi:10.1592/phco.26.9.1314 Meta-analysis / review
https://doi.org/10.1592/phco.26.9.1314 - Paeng, C.H., Sprague, M. and Jackevicius, C.A (2007) 'Interaction between warfarin and cranberry juice', Clinical Therapeutics, 29(8), pp. 1730-1735. doi:10.1016/j.clinthera.2007.08.018 Clinical study
https://doi.org/10.1016/j.clinthera.2007.08.018
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.