Umckaloabo: benefits, dosage, contraindications

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Native to the South African plateaus, Umckaloabo, scientifically known as Pelargonium sidoides, is a perennial herb valued for its medicinal properties. Used for centuries in Zulu traditional medicine, it is employed to treat a variety of ailments, notably respiratory infections, digestive disorders and fatigue. Its name, Umckaloabo, comes from Zulu and means "severe cough" or "chest pain". This plant has thick roots rich in compounds such as coumarins, tannins and phenols: - Coumarins: notably umckalin, known for its antimicrobial and immunomodulatory effects. - Hydrolyzable tannins: these compounds, such as gallic acid and ellagitannins, have astringent properties and help reduce inflammation. - Flavanols: such as catechin and gallocatechin, which are powerful antioxidants protecting cells from damage caused by free radicals. These constituents are responsible for its multiple therapeutic effects, notably antimicrobial, immunomodulatory and anti-inflammatory. The part used for medicinal purposes is mainly the root, processed into standardized extracts to ensure clinical efficacy. Today, Umckaloabo is mainly recognized for its effectiveness in treating acute respiratory infections such as bronchitis and the common cold.

Scientific name(s)

Pelargonium sidoides

Family or group: 

Plants

Active ingredients:

Catechins

Gallic acid

Polyphenols


Indications

Scoring methodology

EFSA approval.

Several randomized, double-blind, controlled clinical trials (> 2), including a significant number of patients (>100), with consistently positive conclusions for the indication.
Several randomized, double-blind, controlled clinical trials (> 2), including a significant number of patients (>100), with positive conclusions for the indication.
One or more randomized studies, or several cohorts or epidemiological studies, with positive conclusions for the indication.
Clinical studies exist but are uncontrolled, with conclusions that may be positive or conflicting.
No clinical studies to date that can demonstrate the indication.


Bronchitis
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Clinical studies and meta-analyses show that Pelargonium sidoides, administered within 48 hours of symptom onset, significantly reduces cough severity and promotes faster symptom resolution after 7 days of treatment compared with placebo. The product used, EPs 7630, is administered as a liquid (30 drops three times a day) or in tablets (10-30 mg three times a day). In children, an adjusted dosage (10-20 drops three times a day) also reduces fever and the need for medications.

Posologie

posologieOral: root

posologie30 mg

formulationstandardized extract


Common cold, Respiratory infections
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Pelargonium sidoides extracts (EPs 7630) have been shown to be effective in reducing the severity and duration of common cold symptoms, notably cough and nasal congestion. nnA meta-analysis of five studies shows a decrease in subjective symptom severity scores, a reduction in the number of sick days, and an improvement in sleep quality. Doses range from 1.5 mL to 3 mL three times a day for 5 to 10 days. nnAnalyses also indicate comparable effectiveness against human coronavirus infections (excluding COVID-19). These results position Pelargonium sidoides among the most promising plants for common respiratory infections.nn

Posologie

posologieOral: root

posologie30 mg

formulationstandardized extract


Properties


Antimicrobial

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The antimicrobial effect of Pelargonium sidoides is mainly attributed to its coumarins (notably umckalin), its tannins and its proanthocyanidins. These compounds inhibit the growth of many pathogenic bacteria by altering the permeability of their cell membrane, which disrupts their essential functions. Tannins, through their astringent properties, precipitate bacterial proteins, reducing their adhesion to mucous membranes. Root extracts of Pelargonium sidoides, particularly in acetone form or the standardized product (EPs 7630), show antibacterial activity in vitro against several pathogens, including Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, Proteus mirabilis, Streptococcus pneumoniae, and multi-resistant strains of Staphylococcus aureus. They also act against Hemophilus influenzae. Furthermore, the root extract demonstrates in vitro activity against Mycobacterium tuberculosis and other mycobacteria. However, the antibacterial activity remains lower than that of conventional antibiotics such as penicillin or erythromycin.

Usages associés

Common cold

Immunomodulatory

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Pelargonium sidoides stimulates the innate and adaptive immune response. Root extracts increase macrophage phagocytosis and activate dendritic cells, essential for antigen presentation. They also induce the release of pro-inflammatory cytokines such as interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α), promoting a rapid response against infections. This dual modulatory and stimulatory effect allows the plant to strengthen natural defenses without causing an excessive reaction.

Usages associés

Bronchitis

Antiviral

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The antiviral properties of Pelargonium sidoides are attributed to its polyphenols, which directly inhibit viral replication. These compounds act by blocking the attachment of viruses to host cells, thereby preventing their entry and spread. In addition, tannins reinforce the mucosal barrier, limiting viral invasion. These combined actions are particularly effective against viruses responsible for acute respiratory infections, such as rhinoviruses or influenza viruses.

Usages associés

Common cold


Safe dosage

Adult: 30 mg - 1200 mg (standardized extract)

The tablet form is most often used at a dose of 10-40 mg three times a day for 7-10 days.

Child: 3 mL (fluid extract)

A specific extract of Pelargonium sidoides (EPs 7630, Dr. Willmar Schwabe Pharmaceuticals) at a dose of 3 mL per day was used in children aged 6 to 10 years for up to 7 days.


Precautions

Pregnant women: avoid

Insufficient data.

Breastfeeding women: avoid

Insufficient data.