Acedera, Acedera Común, Azeda-Brava, Common Sorrel, Field Sorrel, Garden Sorrel, Oseille, Oseille Commune, Oseille des Champs, Petite Oseille, Petite Oseille des Brebis, Red Sorrel, Rumex acetosa, Rumex acetosella, Sheep's Sorrel, Sorrel Dock, Sour Dock, Surette, Vignette, Vinette, Wiesensauerampfer.
Sorrel is a plant. People use the above ground parts for medicine.
Be careful not to confuse sorrel (Rumex acetosa) with roselle (Hibiscus sabdariffa), which is known as Jamaican sorrel or Guinea sorrel.
Sorrel is used for reducing sudden and ongoing pain and swelling (inflammation) of the nasal passages and respiratory tract, for treating bacterial infections along with conventional medicines, and for increasing urine flow (as a diuretic). Sorrel is also an ingredient in the herbal cancer treatment Essiac.
In combination with gentian root, European elder flower, verbena, and cowslip flower, sorrel is used orally for maintaining healthy sinuses and treating sinusitis.
How does it work?
Sorrel contains tannins, which have a drying effect to reduce mucous production.
Possibly Effective for...
- Inflamed nasal passage (sinusitis). Some research suggests that taking a specific product that contains sorrel, gentian root, European elderflower, verbena, and cowslip flower (SinuComp; Sinupret, Bionorica Arzneimittel GmbH, Neumarkt, Germany) by mouth for up to 14 days improves symptoms of sinusitis, such as congestion and headache.
Insufficient Evidence to Rate Effectiveness for...
- Breast cancer. Early research suggests that taking a specific product containing sorrel, burdock root, Indian rhubarb, and slippery elm bark (Essiac, Resperin Canada Limited, Waterloo, Ontario, Canada) by mouth does not improve quality of life or mood in people with breast cancer.
- Bronchitis. Early research shows that taking a specific combination product containing sorrel, gentian root, European elderflower, verbena, and cowslip flower (Sinupret, Bionorica Arzneimittel GmbH, Neumarkt, Germany) by mouth for 10 days improves cough and other symptoms of bronchitis.
- Fluid retention.
- Other conditions.
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
Sorrel is POSSIBLY SAFE for most people when consumed in food amounts or when taken by mouth in medicinal amounts as part of a combination product containing gentian root, European elder flower, verbena, and cowslip flower (SinuComp, Sinupret). The combination product can cause digestive system upset and occasionally allergic skin rash.
Sorrel is POSSIBLY UNSAFE when taken by mouth in large amounts, since it might increase the risk of developing kidney stones. There is also a report of death after consuming a large amount (500 grams) of sorrel.
Special Precautions & Warnings:Children: Sorrel is POSSIBLY UNSAFE in children when taken by mouth in large amounts. Sorrel contains oxalic acid. There is concern because a four-year-old child died after eating rhubarb leaves, which also contain oxalic acid.
Pregnancy and breast-feeding: Sorrel is POSSIBLY UNSAFE when taken by mouth in large amounts during pregnancy. Although unlikely, taking sorrel as part of a combination product (Sinupret) during pregnancy might increase the risk of birth defects. There is not enough reliable information about the safety of taking sorrel in medicinal amounts if you are breast-feeding. Stay on the safe side and avoid use.
Kidney disease: Large amounts of sorrel might increase the risk of kidney stones. Don’t use sorrel without a healthcare professional’s advice if you have ever had kidney stones.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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Bhakuni, D. S., Bittner, M., Marticorena, C., Silva, M., Weldt, E., and Hoeneisen, M. Screening of Chilean plants for anticancer activity. I. Lloydia. 1976;39(4):225-243. View abstract.
Choe S., Hwang B, Kim M, and et al. Chemical components of Rumex acetellosa L. Korean J Pharmacog 1998;29:209-216.
Dornberger, K. and Lich, H. [Screening for antimicrobial and presumed cancerostatic plant metabolites (author's transl)]. Pharmazie 1982;37(3):215-221. View abstract.
Ernst, E., Marz, R. W., and Sieder, C. [Acute bronchitis: effectiveness of Sinupret. Comparative study with common expectorants in 3,187 patients]. Fortschr.Med 4-20-1997;115(11):52-53. View abstract.
Farre, M., Xirgu, J., Salgado, A., Peracaula, R., Reig, R., and Sanz, P. Fatal oxalic acid poisoning from sorrel soup. Lancet 12-23-1989;2(8678-8679):1524. View abstract.
Gniazdowska, B., Doroszewska, G., and Doroszewski, W. [Hypersensitivity to weed pollen allergens in the region of Bygdoszcz]. Pneumonol.Alergol.Pol. 1993;61(7-8):367-372. View abstract.
Karn H and Moore MJ. The use of the herbal remedy ESSIAC in an outpatient cancer population. Proc Annu Meet Am Soc Clin Oncol 1997;16:A245.
Lee, N. J., Choi, J. H., Koo, B. S., Ryu, S. Y., Han, Y. H., Lee, S. I., and Lee, D. U. Antimutagenicity and cytotoxicity of the constituents from the aerial parts of Rumex acetosa. Biol Pharm Bull. 2005;28(11):2158-2161. View abstract.
Locock RA. Herbal medicine: Essiac. Can Pharm J 1997;130 (Feb):18-19, 51.
Melzer, J., Saller, R., Schapowal, A., and Brignoli, R. Systematic review of clinical data with BNO-101 (Sinupret) in the treatment of sinusitis. Forsch Komplement.Med (2006.) 2006;13(2):78-87. View abstract.
Neubauer N and Marz RW. Placebo-controlled, randomized double-blind clinical trial with Sinupret sugar coated tablets on the basis of a therapy with antibiotics and decongestant nasal drops in acute sinusitis. Phytomedicine 1994;1:177-181.
Richardson, M. A. Research of complementary/alternative medicine therapies in oncology: promising but challenging. J Clin Oncol. 1999;17(11 Suppl):38-43. View abstract.
Richstein, A. and Mann, W. [Treatment of chronic sinusitis with Sinupret]. Ther.Ggw. 1980;119(9):1055-1060. View abstract.
Sanz, P. and Reig, R. Clinical and pathological findings in fatal plant oxalosis. A review. Am J Forensic Med Pathol. 1992;13(4):342-345. View abstract.
Tai, J. and Cheung, S. In Vitro culture studies of FlorEssence on human tumor cell lines. Phytother Res 2005;19(2):107-112. View abstract.
Tarasova, G. D. [The administration of sinupret in the treatment of acute sinusitis in children]. Vestn.Otorinolaringol. 2001;(2):46-48. View abstract.
U.S.Congressional Office of Technology Assessment. Essiac. US Government Printing Office, Washington, DC: 1990.
Yamamoto A. Essiac. Can J Hosp Pharm 1988;41(3):158.
Ismail, C., Wiesel, A., Marz, R. W., and Queisser-Luft, A. Surveillance study of Sinupret in comparison with data of the Mainz birth registry. Arch Gynecol.Obstet 2003;267(4):196-201. View abstract.
Ito H. Effects of the antitumor agents from various natural sources on drug-metabolizing system, phagocytic activity and complement system in sarcoma 180-bearing mice. Jpn J Pharmacol 1986;40:435-43. View abstract.
Jaber R. Respiratory and allergic diseases: from upper respiratory tract infections to asthma. Prim Care 2002;29:231-61. View abstract.
Kaegi E. Unconventional therapies for cancer: 1. Essiac. The Task Force on Alternative Therapies of the Canadian Breast Cancer Research Initiative. CMAJ 1998;158:897-902. View abstract.
Marz RW, Ismail C, Popp MA. Action profile and efficacy of a herbal combination preparation for the treatment of sinusitis. Wien Med Wochenschr 1999;149:202-8. View abstract.
Neubauer N, Marz RW. Placebo-controlled, randomized, double-blind, clincal trial with Sinupret sugar coated tablets on the basis of a therapy with antibiotics and decongestant nasal drops in acute sinusitis. Phytomedicine 1994;1:177-81.
Terris MK, Issa MM, Tacker JR. Dietary supplementation with cranberry concentrate tablets may increase the risk of nephrolithiasis. Urology 2001;57:26-9. View abstract.
Zick, S. M., Sen, A., Feng, Y., Green, J., Olatunde, S., and Boon, H. Trial of Essiac to ascertain its effect in women with breast cancer (TEA-BC). J Altern Complement Med 2006;12(10):971-980. View abstract.