OREGON GRAPE

OTHER NAME(S):

Barberry, Berberis aquifolium, Berberis nervosa, Berberis repens, Berberis sonnei, Blue Barberry, Creeping Barberry, Holly Barberry, Holly-Leaved Berberis, Holly Mahonia, Mahonia, Mahonia aquifolium, Mahonia diversifolia, Mahonia Faux Houx, Mahonia à Feuilles de Houx, Mahonia nervosa, Mahonia repens, Mahonie, Mountain-Grape, Oregon Barberry, Oregon-Grape, Oregon Grape-Holly, Scraperoot, Trailing Mahonia, Uva de Oregon, Vigne de l'Oregon, Water-Holly.

Overview

Overview Information

Oregon grape is a plant. The bark, root, and root-like stem (rhizome) are used to make medicine.

Oregon grape is used for scaly, itchy skin (psoriasis), eczema (atopic dermatitis), stomach problems, and other conditions, but there is no good scientific evidence to support these uses.

How does it work?

The chemicals in Oregon grape might help fight bacterial and fungal infections. Oregon grape may also slow the overproduction of skin cells in diseases such as psoriasis.

Uses

Uses & Effectiveness?

Possibly Effective for

  • Scaly, itchy skin (psoriasis). Some evidence suggests that applying a specific 10% Oregon grape extract cream (Relieva by Apollo Pharmaceutical) can reduce the severity of psoriasis and improve quality of life for people who have psoriasis. It might be as effective as the medication calcipotriene (Dovonex) cream for some people.

Insufficient Evidence for

  • Eczema (atopic dermatitis). Early research suggests that applying a specific Oregon grape extract cream (Relieva by Apolla Pharmaceutical) for 12 weeks might improve the severity and area of itchy and inflamed skin in people with a skin condition called eczema.
  • Stomach ulcers.
  • Heartburn.
  • Stomach upset.
  • Other conditions.
More evidence is needed to rate the effectiveness of Oregon grape for these uses.

Side Effects

Side Effects & Safety

When taken by mouth: Oregon grape is LIKELY SAFE when taken in the amounts found in foods. There isn't enough reliable information to know if Oregon grape is safe to use in medicinal amounts or what the side effects might be.

When applied to the skin: Oregon grape cream is POSSIBLY SAFE for most people when applied directly to the skin. It can cause some side effects such as itching, burning, irritation, and allergic reactions.

Special Precautions & Warnings:

Pregnancy and breast-feeding: It's LIKELY UNSAFE to use Oregon grape if you are pregnant or breast-feeding. One of the chemicals in Oregon grape, berberine, may cross the placenta and might cause harm to the fetus. It can also be transferred to the infant through breast milk. Brain damage (kernicterus) has been reported in newborn infants exposed to berberine.

Children: It's LIKELY UNSAFE to give Oregon grape to infants. The berberine in Oregon grape can cause brain damage (kernicterus) in newborns, particularly premature newborns who have jaundice. Jaundice is a condition in which there is yellowing of the eyes and skin caused by bile pigments in the blood. There isn't enough reliable information to know if Oregon grape is safe to give to older children. Stay on the safe side and avoid use.

Diabetes: Oregon grape can lower blood sugar. Oregon grape may cause blood sugar to become too low in people who are also taking antidiabetes medications. Use with caution.

Low blood pressure: Oregon grape can lower blood pressure. Oregon grape might increase the risk of blood pressure becoming too low in people who already have low blood pressure. Use with caution.

Interactions

Interactions?

Moderate Interaction

Be cautious with this combination

!
  • Cyclosporine (Neoral, Sandimmune) interacts with OREGON GRAPE

    The body breaks down cyclosporine (Neoral, Sandimmune) to get rid of it. Oregon grape might decrease how fast the body breaks down cyclosporine (Neoral, Sandimmune). This might cause there to be too much cyclosporine (Neoral, Sandimmune) in the body and potentially cause side effects.

  • Medications changed by the liver (Cytochrome P450 3A4 (CYP3A4) substrates) interacts with OREGON GRAPE

    Some medications are changed and broken down by the liver.
    Oregon grape might decrease how quickly the liver breaks down some medications. Taking Oregon grape along with some medications that are broken down by the liver can increase the effects and side effects of some medications. Before taking Oregon grape, talk to your healthcare provider if you are taking any medications that are changed by the liver.
    Some medications changed by the liver include cyclosporine (Neoral, Sandimmune), lovastatin (Mevacor), clarithromycin (Biaxin), indinavir (Crixivan), sildenafil (Viagra), triazolam (Halcion), and many others.

Dosing

Dosing

The following doses have been studied in scientific research:

APPLIED TO THE SKIN:

  • For scaly, itchy skin (psoriasis): A specific 10% Oregon grape bark extract cream (Relieva, Apolla Pharmaceutical) is applied to affected areas 2-3 times daily.

View References

REFERENCES:

  • Vollekova A, Kost'alova D, Kettmann V, Toth J. Antifungal activity of Mahonia aquifolium extract and its major protoberberine alkaloids. Phytother Res 2003;17:834-7. View abstract.
  • Wiesenauer M, Lydtke R. Mahonia aquifolium in patients with Psoriasis vulgaris; an intraindividual study. Phytomedicine 1996;3:231-5.
  • Wu X, Li Q, Xin H, Yu A, Zhong M. Effects of berberine on the blood concentration of cyclosporin A in renal transplanted recipients: clinical and pharmacokinetic study. Eur J Clin Pharmacol 2005;61:567-72. View abstract.
  • Zeng XH, Zeng XJ, Li YY. Efficacy and safety of berberine for congestive heart failure secondary to ischemic or idiopathic dilated cardiomyopathy. Am J Cardiol 2003;92:173-6. View abstract.
  • Zhang Y, Li X, Zou D, et al. Treatment of type 2 diabetes and dyslipidemia with the natural plant alkaloid berberine. J Clin Endocrinol Metab 2008;93:2559-65. View abstract.
  • Augustin, M., Andrees, U., Grimme, H., Schopf, E., and Simon, J. Effects of Mahonia aquifolium ointment on the expression of adhesion, proliferation, and activation markers in the skin of patients with psoriasis. Forsch.Komplementarmed. 1999;6 Suppl 2:19-21. View abstract.
  • Cernakova, M. and Kostalova, D. Antimicrobial activity of berberine--a constituent of Mahonia aquifolium. Folia Microbiol.(Praha) 2002;47(4):375-378. View abstract.
  • Cheng, Z., Pang, T., Gu, M., Gao, A. H., Xie, C. M., Li, J. Y., Nan, F. J., and Li, J. Berberine-stimulated glucose uptake in L6 myotubes involves both AMPK and p38 MAPK. Biochim.Biophys.Acta 2006;1760(11):1682-1689. View abstract.
  • Chun YT, Yip TT, Lau KL, and et al. A biochemical study on the hypotensive effect of berberine in rats. Gen Pharmac 1979;10:177-182. View abstract.
  • Donsky, H. and Clarke, D. Relieva, a Mahonia aquifolium extract for the treatment of adult patients with atopic dermatitis. Am.J.Ther. 2007;14(5):442-446. View abstract.
  • Eaker, E. Y. and Sninsky, C. A. Effect of berberine on myoelectric activity and transit of the small intestine in rats. Gastroenterology 1989;96(6):1506-1513. View abstract.
  • Guo, Y., Chen, Y., Tan, Z. R., Klaassen, C. D., and Zhou, H. H. Repeated administration of berberine inhibits cytochromes P450 in humans. Eur J Clin Pharmacol 2012;68(2):213-217. View abstract.
  • Hermann, R. and von, Richter O. Clinical evidence of herbal drugs as perpetrators of pharmacokinetic drug interactions. Planta Med 2012;78(13):1458-1477. View abstract.
  • Klovekorn, W., Tepe, A., and Danesch, U. A randomized, double-blind, vehicle-controlled, half-side comparison with a herbal ointment containing Mahonia aquifolium, Viola tricolor and Centella asiatica for the treatment of mild-to-moderate atopic dermatitis. Int.J.Clin.Pharmacol.Ther. 2007;45(11):583-591. View abstract.
  • Lee, Y. S., Kim, W. S., Kim, K. H., Yoon, M. J., Cho, H. J., Shen, Y., Ye, J. M., Lee, C. H., Oh, W. K., Kim, C. T., Hohnen-Behrens, C., Gosby, A., Kraegen, E. W., James, D. E., and Kim, J. B. Berberine, a natural plant product, activates AMP-activated protein kinase with beneficial metabolic effects in diabetic and insulin-resistant states. Diabetes 2006;55(8):2256-2264. View abstract.
  • Lu, S. S., Yu, Y. L., Zhu, H. J., Liu, X. D., Liu, L., Liu, Y. W., Wang, P., Xie, L., and Wang, G. J. Berberine promotes glucagon-like peptide-1 (7-36) amide secretion in streptozotocin-induced diabetic rats. J Endocrinol. 2009;200(2):159-165. View abstract.
  • Misik, V., Bezakova, L., Malekova, L., and Kostalova, D. Lipoxygenase inhibition and antioxidant properties of protoberberine and aporphine alkaloids isolated from Mahonia aquifolium. Planta Med 1995;61(4):372-373. View abstract.
  • Miyazaki, H., Shirai, E., Ishibashi, M., Hosoi, K., Shibata, S., and Iwanaga, M. Quantitation of berberine chloride in human urine by use of selected ion monitoring in the field desorption mode. Biomed.Mass Spectrom. 1978;5(10):559-565. View abstract.
  • Peng, W. H., Hsieh, M. T., and Wu, C. R. Effect of long-term administration of berberine on scopolamine-induced amnesia in rats. Jpn J Pharmacol 1997;74(3):261-266. View abstract.
  • Reuter, J., Wolfle, U., Weckesser, S., and Schempp, C. Which plant for which skin disease? Part 1: Atopic dermatitis, psoriasis, acne, condyloma and herpes simplex. J Dtsch.Dermatol.Ges. 2010;8(10):788-796. View abstract.
  • Rob C., Durk W. Isolation and characterization of microsatellite markers in the invasive shrub Mahonia aquifolium (Berberidacea) and their applicability in related species. Molecular Ecology Notes 2006;6(3):948-950.
  • Rohrer, U., Kunz, E. M., Lenkeit, K., Schaffner, W., and Meyer, J. Antimicrobial activity of Mahonia aquifolium and two of its alkaloids against oral bacteria. Schweiz.Monatsschr.Zahnmed. 2007;117(11):1126-1131. View abstract.
  • Sabir M and Bhide NK. Study of some pharmacological actions of berberine. Ind J Physiol & Pharmac 1971;15(3):111-132.
  • Shanbhag, S. M., Kulkarni, H. J., and Gaitonde, B. B. Pharmacological actions of berberine on the central nervous system. Jpn.J Pharmacol 1970;20(4):482-487. View abstract.
  • Tripathi YB and Shukla SD. Berberis artistata inhibits PAF induced aggregation of rabbit platelets. Phytotherapy Research 1996;10:628-630.
  • Wei, W., Zhao, H., Wang, A., Sui, M., Liang, K., Deng, H., Ma, Y., Zhang, Y., Zhang, H., and Guan, Y. A clinical study on the short-term effect of berberine in comparison to metformin on the metabolic characteristics of women with polycystic ovary syndrome. Eur J Endocrinol. 2012;166(1):99-105. View abstract.
  • Wiesenauer M., Ludtke R. Mahonia aquifolium in patients with psoriasis vulgaris - an intraindividual study. 1996;3:231-235.
  • Wu, J. F. and Liu, T. P. [Effects of berberine on platelet aggregation and plasma levels of TXB2 and 6-keto-PGF1 alpha in rats with reversible middle cerebral artery occlusion]. Yao Xue.Xue.Bao. 1995;30(2):98-102. View abstract.
  • Yin, J., Gao, Z., Liu, D., Liu, Z., and Ye, J. Berberine improves glucose metabolism through induction of glycolysis. Am J Physiol Endocrinol.Metab 2008;294(1):E148-E156. View abstract.
  • Yin, J., Xing, H., and Ye, J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism 2008;57(5):712-717. View abstract.
  • Zhang, H., Wei, J., Xue, R., Wu, J. D., Zhao, W., Wang, Z. Z., Wang, S. K., Zhou, Z. X., Song, D. Q., Wang, Y. M., Pan, H. N., Kong, W. J., and Jiang, J. D. Berberine lowers blood glucose in type 2 diabetes mellitus patients through increasing insulin receptor expression. Metabolism 2010;59(2):285-292. View abstract.
  • Zhou, J. Y., Zhou, S. W., Zhang, K. B., Tang, J. L., Guang, L. X., Ying, Y., Xu, Y., Zhang, L., and Li, D. D. Chronic effects of berberine on blood, liver glucolipid metabolism and liver PPARs expression in diabetic hyperlipidemic rats. Biol Pharm Bull. 2008;31(6):1169-1176. View abstract.
  • Coughlan KA, Valentine RJ, Ruderman NB, Saha AK. AMPK activation: a therapeutic target for type 2 diabetes? Diabetes Metab Syndr Obes 2014;7:241-53. View abstract.
  • Amin AH, Subbaiah TV, Abbasi KM. Berberine sulfate: antimicrobial activity, bioassay, and mode of action. Can J Microbiol 1969;15:1067-76. View abstract.
  • Ang ES, Lee ST, Gan CS, et al. Evaluating the role of alternative therapy in burn wound management: randomized trial comparing moist exposed burn ointment with conventional methods in the management of patients with second-degree burns. MedGenMed 2001;3:3. View abstract.
  • Anis KV, Rajeshkumar NV, Kuttan R. Inhibition of chemical carcinogenesis by berberine in rats and mice. J Pharm Pharmacol 2001;53:763-8. . View abstract.
  • Bernstein S, Donsky H, Gullver W, et al. Treatment of mild to moderate psoriasis with Relieva, a Mahonia aquifolium extract - a double blind, placebo-controlled study. Am J Ther 2006;13:121-6. View abstract.
  • Bhide MB, Chavan SR, Dutta NK. Absorption, distribution and excretion of berberine. Indian J Med Res 1969;57:2128-31. View abstract.
  • Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. View abstract.
  • Chan E. Displacement of bilirubin from albumin by berberine. Biol Neonate 1993;63:201-8. View abstract.
  • Chatterjee P, Franklin MR. Human cytochrome p450 inhibition and metabolic-intermediate complex formation by goldenseal extract and its methylenedioxyphenyl components. Drug Metab Dispos 2003;31:1391-7. View abstract.
  • Fukuda K, Hibiya Y, Mutoh M, et al. Inhibition by berberine of cyclooxygenase-2 transcriptional activity in human colon cancer cells. J Ethnopharmacol 1999;66:227-33. View abstract.
  • Gieler U, von der Weth A, Heger M. Mahonia aquifolium- a new type of topical treatment for psoriasis. J Dermatol Treatment 1995;6:31-4.
  • Gulliver WP, Donsky HJ. A report on three recent clinical trials using Mahonia aquifolium 10% topical cream and a review of the worldwide clinical experience with Mahonia aquifolium for the treatment of plaque psoriasis. Am J Ther 2005;12:398-406. View abstract.
  • Gupte S. Use of berberine in treatment of giardiasis. Am J Dis Child 1975;129:866. View abstract.
  • Hsiang CY, Wu SL, Cheng SE, Ho TY. Acetaldehyde-induced interleukin-1beta and tumor necrosis factor-alpha production is inhibited by berberine through nuclear factor-kappaB signaling pathway in HepG2 cells. J Biomed Sci 2005;12:791-801. View abstract.
  • Hyodo T, Taira T, Kumakura M, et al. The immediate effect of Shakuyaku-kanzo-to, traditional Japanese herbal medicine, for muscular cramps during maintenance hemodialysis. Nephron 2002;90:240. View abstract.
  • Janbaz KH, Gilani AH. Studies on preventive and curative effects of berberine on chemical-induced hepatotoxicity in rodents. Fitoterapia 2000;71:25-33.. View abstract.
  • Kaneda Y, Torii M, Tanaka T, Aikawa M. In vitro effects of berberine sulphate on the growth and structure of Entamoeba histolytica, Giardia lamblia and Trichomonas vaginalis. Ann Trop Med Parasitol 1991;85:417-25. View abstract.
  • Kim SH, Shin DS, Oh MN, et al. Inhibition of the bacterial surface protein anchoring transpeptidase sortase by isoquinoline alkaloids. Biosci Biotechnol Biochem 2004;68:421-4.. View abstract.
  • Lan J, Zhao Y, Dong F, et al. Meta-analysis of the effect and safety of berberine in the treatment of type 2 diabetes mellitus, hyperlipemia and hypertension. J Ethnopharmacol. 2015;161:69-81. View abstract.
  • Li B, Shang JC, Zhou QX. [Study of total alkaloids from rhizoma coptis chinensis on experimental gastric ulcers]. Chin J Integr Med 2005;11:217-21. View abstract.
  • Natural Health Remedies. Health Canada. Available at: www.hc-sc.gc.ca/english/archives/96-97/herbnae.html (Accessed 16 July 1999).
  • Rabbani GH, Butler T, Knight J, et al. Randomized controlled trial of berberine sulfate therapy for diarrhea due to enterotoxigenic Escherichia coli and Vibrio cholerae. J Infect Dis 1987;155:979-84. View abstract.
  • Rackova L, Majekova M, Kost'alova D, Stefek M. Antiradical and antioxidant activities of alkaloids isolated from Mahonia aquifolium. Structural aspects. Bioorg Med Chem 2004;12:4709-15. View abstract.
  • Rehman J, Dillow JM, Carter SM, et al. Increased production of antigen-specific immunoglobulins G and M following in vivo treatment with the medicinal plants Echinacea angustifolia and Hydrastis canadensis. Immunol Lett 1999;68:391-5. View abstract.
  • Scazzocchio F, Corneta MF, Tomassini L, Palmery M. Antibacterial activity of Hydrastis canadensis extract and its major isolated alkaloids. Planta Med 2001;67:561-4. View abstract.
  • Slobodnikova L, Kost'alova D, Labudova D, et al. Antimicrobial activity of Mahonia aquifolium crude extract and its major isolated alkaloids. Phytother Res 2004;18:674-6. View abstract.
  • Sun D, Courtney HS, Beachey EH. Berberine sulfate blocks adherence of Streptococcus pyogenes to epithelial cells, fibronectin, and hexadecane. Antimicrob Agents Chemother 1988;32:1370-4. View abstract.
  • Tsai PL, Tsai TH. Hepatobiliary excretion of berberine. Drug Metab Dispos 2004;32:405-12. . View abstract.

Vitamins Survey

Have you ever purchased OREGON GRAPE?

Did you or will you purchase this product in-store or online?

Where did you or where do you plan to purchase this product?

Where did you or where do you plan to purchase this product?

What factors influenced or will influence your purchase? (check all that apply)

Vitamins Survey

Where did you or where do you plan to purchase this product?

Do you buy vitamins online or instore?

What factors are most important to you? (check all that apply)

This survey is being conducted by the WebMD marketing sciences department.Read More

More Resources for OREGON GRAPE

CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty .