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.


Overview Information

Sorrel is a plant. People use the above ground parts for medicine.

People take sorrel in combination with other ingredients for swelling (inflammation) of the nasal cavity and sinuses (rhinosinusitis), and for swelling (inflammation) of the main airways in the lung (bronchitis). But there is no good scientific evidence to support these uses.

Sorrel is also used as an ingredient in sauces and soups.

How does it work?

Sorrel contains tannins, which have a drying effect to reduce mucous production.


Uses & Effectiveness?

Insufficient Evidence for

  • Breast cancer.
  • Fluid retention.
  • Swelling (inflammation) of the main airways in the lung (bronchitis).
  • Swelling (inflammation) of the nasal cavity and sinuses (rhinosinusitis).
  • Other conditions.
More evidence is needed to rate the effectiveness of sorrel for these uses.

Side Effects

Side Effects & Safety

When taken by mouth: Sorrel is POSSIBLY SAFE for most people when consumed in food amounts. It is also POSSIBLY SAFE to take sorrel in medicinal amounts as part of certain combination products. These include a specific product that contains gentian root, European elder flower, verbena, and cowslip flower (Sinupret, SinuComp), as well as a specific product that contains burdock root, Indian rhubarb, and slippery elm bark (Essiac). These combinations can cause upset stomach. In larger doses, sorrel can cause damage to the kidneys, liver, and digestive organs.

Sorrel is POSSIBLY UNSAFE when taken in large amounts, since it might increase the risk of developing kidney stones.

Special Precautions & Warnings:

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 isn't enough reliable information to know if sorrel is safe to use when breast-feeding. Stay on the safe side and avoid use.

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.

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 or are at risk of getting kidney stones.

Surgery: Sorrel can slow blood clotting. There is concern that it might cause extra bleeding during and after surgery. Stop using sorrel at least 2 weeks before a scheduled surgery.



We currently have no information for SORREL Interactions.



The following doses have been studied in scientific research:


  • Swelling (inflammation) of the nasal cavity and sinuses (rhinosinusitis): A specific combination product containing 36 mg of sorrel, 12 mg of gentian root, and 36 mg each of European elder flower, verbena, and cowslip flower has been taken three times daily for up to 14 days.

View References


  • 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.
  • Ahn JH, Kim J, Rehman NU, Kim HJ, Ahn MJ, Chung HJ. Effect of Rumex Acetosa Extract, a Herbal Drug, on the Absorption of Fexofenadine. Pharmaceutics. 2020;12(6):E547. View abstract.
  • Bicker J, Petereit F, Hensel A. Proanthocyanidins and a phloroglucinol derivative from Rumex acetosa L. Fitoterapia 2009;80(8):483-95. View abstract.
  • Derksen A, Hensel A, Hafezi W, et al. 3-O-galloylated procyanidins from Rumex acetosa L. inhibit the attachment of influenza A virus. PLoS One 2014;9(10):e110089. View abstract.
  • Gescher K, Hensel A, Hafezi W, Derksen A, Kühn J. Oligomeric proanthocyanidins from Rumex acetosa L. inhibit the attachment of herpes simplex virus type-1. Antiviral Res 2011;89(1):9-18. View abstract.
  • 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.
  • Jeong D, Irfan M, Lee DH, Hong SB, Oh JW, Rhee MH. Rumex acetosa modulates platelet function and inhibits thrombus formation in rats. BMC Complement Med Ther. 2020;20(1):98. 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.
  • Peric A, Kovacevic SV, Gacesa D, Peric AV. Efficacy and safety of combined treatment of acute rhinosinusitis by herbal medicinal product Sinupret and mometasone furoate nasal spray. ENT Updates 2017;7(2):68-74.
  • Selçuk SN, Gülhan B, Düzova A, Teksam Ö. Acute tubulointerstitial nephritis due to large amount of sorrel (Rumex acetosa) intake. Clin Toxicol (Phila) 2015;53(5):497. View abstract.
  • 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.

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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.

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