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More Information: Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.

Pelargonium sidoides

Pelargonium sidoides

Common Names

  • EPs 7630

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For Patients & Caregivers

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Pelargonium sidoides helps reduce cold symptoms.

Pelargonium sidoides is an herb that has been used in traditional medicine in South Africa for centuries. It is used in Europe to treat the common cold and bronchitis. In laboratory studies, this herb was shown to kill bacteria, viruses, and stimulate the immune system. Human studies show that it can reduce the symptoms of common cold and bronchitis.

Purported Uses Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.
  • Dysentery
    Although P. sidoides is used to treat dysentery in traditional medicine, there is no scientific evidence to back this claim.
  • Common cold
    A few studies support use of P. sidoides in reducing symptoms.
  • Bronchitis
    Clinical trial data shows that P. sidoides is effective against acute and chronic bronchitis.
Side Effects Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.
  • Allergies
  • Gastrointestinal upset
  • Ear and inner ear disorders
  • Fever
  • Diarrhea
  • Restlessness
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For Healthcare Professionals

Brand Name Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.
Umckaloabo®, Umcka® cold care
Scientific Name Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.
Pelargonium sidoides
Clinical Summary Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.

Pelargonium sidoides is an herb that has been used in traditional medicine in South Africa for centuries to treat infectious respiratory disease, dysentery, and diarrhea. The root extracts are currently being used in Germany for the treatment of respiratory infections (1). Patients take the supplemental form to treat common cold and acute bronchitis. In vitro studies indicate that P. sidoides has antibacterial (2), antiviral (3) (16) (17), immunomodulatory (4) and anti-adhesive (5) properties.

Data from clinical trials suggest its effectiveness against acute bronchitis in adults and children (6) (7) (8), and against rhinosinusitis (9). Conclusions of a meta-analysis also show a significant decrease in bronchitis symptoms with P. sidoides use (10). An herbal preparation from P. sidoides roots was found effective in treatment of moderate to severe chronic obstructive pulmonary disease (COPD) (15).

Purported Uses Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.
  • Dysentery
  • Diarrhea
  • Common cold
  • Bronchitis
Mechanism of Action Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.

Polyphenols (eg, catechin) and 7-hydroxy-coumarins (eg, umckalin), the main constituents, have anti-microbial and immunomodulatory effects  (1). Other constituents include polymeric proanthocyanidins and monomeric flavan-3-ols, phenolic acids, and gallic acid as well as small amounts of quercetin and sitosterol-glucoside (5).

P. sidoides extract was shown to increase natural killer cell formation, tumor necrosis factor alpha, iNO and interferon-beta release, and also demonstrated anti-adhesive effects (5). In addition, the extract improved peripheral blood phagocytes by enhancing the oxidative burst and intracellular killing in vitro (11) and its anti-HIV effects occur through inhibiting the attachment of viral particles to target cells (17).

Adverse Reactions Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.
  • Allergic reactions (12)
  • Gastrointestinal upset (13)
  • Ear and labyrinth disorders (13)
  • Exacerbation of existing respiratory symptoms, fever, exanthema, psychomotor unrest, and diarrhea in children have been reported (8).
Herb-Drug Interactions Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.

Due to its coumarin content, P. sidoides may increase the risk of bleeding. However, coadministration with warfarin did not change the blood coagulation values in animals (14).

Dosage (OneMSK Only) Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.
References Minus iconIcon indicating subtraction, or that the element can be closed. Plus IconIcon indicating addition, or that the element can be opened. Arrow (down) icon.An arrow icon, usually indicating that the containing element can be opened and closed.

  1. Schulz V. Liquid herbal drug preparation from the root of Pelargonium sidoides is effective against acute bronchitis: results of a double-blind study with 124 patients. Phytomedicine. 2007;14 Suppl 6:74-75.

  2. Kim CE, Griffiths WJ, Taylor PW. Components derived from Pelargonium stimulate macrophage killing of Mycobacterium species. J Appl Microbiol. Apr 2009;106(4):1184-1193.

  3. Michaelis M, Doerr HW, Cinatl J, Jr. Investigation of the influence of EPs((R)) 7630, a herbal drug preparation from Pelargonium sidoides, on replication of a broad panel of respiratory viruses. Phytomedicine. Oct 29 2010.

  4. Luna LA, Jr., Bachi AL, Novaes EBRR, et al.Immune responses induced by Pelargonium sidoides extract in serum and nasal mucosa of athletes after exhaustive exercise: Modulation of secretory IgA, IL-6 and IL-15. Phytomedicine. Sep 16 2010.

  5. Wittschier N, Faller G, Hensel A. An extract of Pelargonium sidoides (EPs 7630) inhibits in situ adhesion of Helicobacter pylori to human stomach. Phytomedicine. Apr 2007;14(4):285-288.

  6. Matthys H, Heger M. Treatment of acute bronchitis with a liquid herbal drug preparation from Pelargonium sidoides (EPs 7630): a randomised, double-blind, placebo-controlled, multicentre study. Curr Med Res Opin. Feb 2007;23(2):323-331.

  7. Kamin W, Maydannik V, Malek FA, Kieser M. Efficacy and tolerability of EPs 7630 in children and adolescents with acute bronchitis - a randomized, double-blind, placebo-controlled multicenter trial with a herbal drug preparation from Pelargonium sidoides roots. Int J Clin Pharmacol Ther. Mar 2010;48(3):184-191.

  8. Haidvogl M, Heger M. Treatment effect and safety of EPs 7630-solution in acute bronchitis in childhood: report of a multicentre observational study. Phytomedicine. 2007;14 Suppl 6:60-64.

  9. Bachert C, Schapowal A, Funk P, Kieser M. Treatment of acute rhinosinusitis with the preparation from Pelargonium sidoides EPs 7630: a randomized, double-blind, placebo-controlled trial. Rhinology. Mar 2009;47(1):51-58.

  10. Agbabiaka TB, Guo R, Ernst E. Pelargonium sidoides for acute bronchitis: a systematic review and meta-analysis. Phytomedicine. May 2008;15(5):378-385.

  11. Conrad A, Hansmann C, Engels I, Daschner FD, Frank U. Extract of Pelargonium sidoides (EPs 7630) improves phagocytosis, oxidative burst, and intracellular killing of human peripheral blood phagocytes in vitro. Phytomedicine. 2007;14 Suppl 6:46-51.

  12. de Boer HJ, Hagemann U, Bate J, Meyboom RH. Allergic reactions to medicines derived from Pelargonium species. Drug Saf. 2007;30(8):677-680.

  13. Matthys H, Eisebitt R, Seith B, Heger M. Efficacy and safety of an extract of Pelargonium sidoides (EPs 7630) in adults with acute bronchitis. A randomised, double-blind, placebo-controlled trial. Phytomedicine. 2003;10 Suppl 4:7-17.

  14. Koch E, Biber A. Treatment of rats with the Pelargonium sidoides extract EPs 7630 has no effect on blood coagulation parameters or on the pharmacokinetics of warfarin. Phytomedicine. 2007;14 Suppl 6:40-45.

  15. Matthys H, Pliskevich DA, Bondarchuk OM, et al. Randomised, double-blind, placebo-controlled trial of EPs 7630 in adults with COPD. Respir Med. 2013 May;107(5):691-701.

  16. Theisen LL1, Muller CP. EPs® 7630 (Umckaloabo®), an extract from Pelargonium sidoides roots, exerts anti-influenza virus activity in vitro and in vivo. Antiviral Res. 2012 May;94(2):147-56. doi: 10.1016/j.antiviral.2012.03.006.

  17. Helfer M, Koppensteiner H, Schneider M, et al. The root extract of the medicinal plant Pelargonium sidoides is a potent HIV-1 attachment inhibitor. PLoS One. 2014 Jan 29;9(1):e87487. doi: 10.1371/journal.pone.0087487. eCollection 2014.

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