Skip to main content
Supplement ScienceSupplementScience
Pelargonium (Umcka) supplement
Herbal Extract

Pelargonium (Umcka) — Research Profile

Evidence:Moderate
·

This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Pelargonium sidoides (EPs 7630/Umcka) is one of the most clinically proven herbal cold remedies, with a Cochrane review...

Pelargonium sidoides (EPs 7630/Umcka) is one of the most clinically proven herbal cold remedies, with a Cochrane review of 10 RCTs confirming it reduces bronchitis symptoms and duration. It works through combined antiviral, antibacterial, and immune-stimulating mechanisms. Standard dosing is 30 drops or 20mg extract 3x daily.

Bottom line: Pelargonium (Umcka) has unusually strong clinical evidence for a herbal remedy, backed by Cochrane review. Start within 48 hours of cold onset for best results.

Evidence:Meta-analysis (2013) · 8 RCTs · n=1,565 · low confidence[#1]. See full reference list below.

Key Facts

What it is
A South African medicinal plant root extract (EPs 7630) with combined antiviral and antibacterial activity
Primary benefits
  • Reduces bronchitis symptom severity and duration
  • Antiviral — prevents viral attachment and replication
  • Antibacterial — inhibits bacterial adhesion to mucosa
  • Stimulates interferon production
  • Backed by Cochrane review evidence
Typical dosage
20mg extract 3x daily or 30 drops liquid 3x daily (EPs 7630)
Evidence level
Moderate
Safety profile
Generally Safe

Get the free evidence-based Pelargonium (Umcka) guide — delivered in 60 seconds.

No spam. Unsubscribe anytime.

What the Research Says

Pelargonium sidoides has an unusually strong evidence base for a herbal remedy. The Cochrane review by Timmer et al. (2013) analyzed 10 RCTs and concluded that EPs 7630 is effective and well-tolerated for acute bronchitis. Matthys et al. (2003) conducted a pivotal double-blind, placebo-controlled RCT showing significant reductions in bronchitis symptom severity scores after 7 days of treatment. The extract is approved as a licensed phytomedicine in Germany — a regulatory status that requires demonstration of efficacy and safety through clinical trials. The multi-target mechanism (antiviral, antibacterial, immunomodulatory, mucociliary) provides a pharmacological rationale for its clinical effectiveness.

Benefits of Pelargonium (Umcka)

  • Bronchitis treatment — a Cochrane review by Timmer et al. (2013) of 10 RCTs found Pelargonium sidoides extract (EPs 7630) significantly reduced bronchitis symptom severity and duration compared to placebo, with good tolerability
  • Antiviral mechanism — pelargonium extract interferes with viral hemagglutinin, preventing influenza and other respiratory viruses from attaching to and entering host cells. It also induces interferon production, enhancing antiviral defense
  • Antibacterial adhesion inhibition — the prodelphinidins in pelargonium prevent bacteria from adhering to mucosal epithelial cells, reducing bacterial colonization and secondary infection risk during viral illness
  • Immunomodulation — EPs 7630 stimulates macrophage phagocytic activity, enhances NK cell function, and increases production of pro-inflammatory cytokines (IL-1, IL-6, TNF-alpha) and interferon-beta
  • Mucus clearance — pelargonium extract increases ciliary beat frequency in bronchial epithelium, improving mucociliary clearance and helping the body expel pathogens and mucus from the airways
Did you know?

Pelargonium sidoides has an unusually strong evidence base for a herbal remedy.

Forms of Pelargonium (Umcka)

Pelargonium (Umcka) supplement forms compared by bioavailability and best use
FormBioavailabilityBest For
Standardized Liquid Extract (EPs 7630)Moderate-HighMost clinically studied form — used in the majority of RCTs; contains the full spectrum of bioactives
Tablet/Capsule (EPs 7630)ModerateConvenient dosing — solid form of the clinically validated extract; easier for travel
Umcka SyrupModerateChildren and palatability — flavored liquid suitable for children over 1 year

Dosage Recommendations

General recommendation: 20mg EPs 7630 extract 3x daily or 30 drops liquid extract 3x daily

Timing: Start within 48 hours of symptom onset for best results; continue for 7-14 days; take between meals

Dosage by Condition

Acute bronchitis
20mg tablet or 30 drops liquid 3x daily for 7-14 daysModerate
Acute cold/URI
20mg 3x daily started within 48 hours of symptom onsetModerate
Children (6-12 years)
10-20mg 3x daily for 7 daysModerate

Upper limit: Follow product labeling; clinical trials used the above doses for up to 14 days

Side Effects and Safety

Safety profile: Generally Safe

Potential Side Effects

  • Generally well-tolerated in clinical trials
  • Mild GI upset (stomach discomfort, nausea, heartburn) in some users
  • Rare allergic reactions including skin rash
  • Very rare hepatotoxicity cases reported — likely idiosyncratic; liver safety overall is reassuring in clinical trial data
  • Rare gum bleeding reported

Drug & Supplement Interactions

  • Anticoagulants — pelargonium may increase bleeding risk; use with caution if on warfarin or other blood thinners
  • Immunosuppressants — pelargonium stimulates immune function; potential interaction with immunosuppressive therapy
  • No other significant drug interactions identified in clinical studies
Check Pelargonium (Umcka) interactions with other supplements →
BenefitsDosage GuideSide EffectsTypes & FormsResearchFAQ

Related Conditions

Commonly Taken Together

Related Supplements

Frequently Asked Questions

How does Umcka compare to other cold remedies?

Pelargonium (Umcka) has stronger clinical evidence than most herbal cold remedies, rivaled only by andrographis. Its unique advantage is combined antiviral and antibacterial activity, which is particularly valuable because many colds progress to secondary bacterial infections (sinusitis, bronchitis). While zinc and vitamin C are also well-proven, Umcka targets respiratory symptoms specifically and is the best-studied herbal remedy for bronchitis. It can be combined with zinc and vitamin C for comprehensive coverage.

Evidence:Meta-analysis (2013) · 8 RCTs · n=1,565 · low confidence[#1]. See full reference list below.

Is Pelargonium safe for children?

EPs 7630 has been studied in multiple pediatric clinical trials and is approved for children over 1 year of age in Germany. The Cochrane review included pediatric studies that showed both efficacy and good tolerability. Umcka-branded products offer age-specific dosing for children. As with all supplements, consult your pediatrician before starting, particularly for children under 6 years.

Why is Pelargonium more popular in Europe than the US?

Germany has a well-established phytomedicine regulatory framework (Commission E) that allows herbal medicines to be registered as licensed drugs based on clinical trial evidence. EPs 7630 has achieved this status, making it available in pharmacies as a recognized medicine. In the US, it is sold as a dietary supplement (Umcka Cold Care brand) with less regulatory recognition. The clinical evidence is the same regardless of geography — it is simply better known and more integrated into medical practice in European countries.

What is the best form of Pelargonium (Umcka) to take?

The best form of pelargonium (umcka) depends on your specific health goals, absorption needs, and tolerance. Chelated and standardized extract forms generally offer higher bioavailability than raw or unstandardized versions. Check the product label for third-party testing to ensure potency and purity.

What are the proven benefits of Pelargonium (Umcka)?

Pelargonium (Umcka) has been studied for multiple health applications with varying levels of clinical evidence. The strongest evidence typically comes from randomized controlled trials and meta-analyses published in peer-reviewed journals. Individual responses can vary based on baseline status, dosage, and duration of use.

How much Pelargonium (Umcka) should I take per day?

Pelargonium (Umcka) dosage depends on the specific form, your health goals, and individual factors such as body weight and baseline nutrient status. Following the dose used in clinical trials is generally the most evidence-based approach. Starting at the lower end of the recommended range and adjusting upward is advisable.

When is the best time to take Pelargonium (Umcka)?

Pelargonium (Umcka) timing depends on whether it is fat-soluble or water-soluble and whether it causes digestive sensitivity. Consistency in timing is more important than the specific hour of the day. Taking supplements at the same time daily helps maintain steady levels.

What are the side effects of Pelargonium (Umcka)?

Pelargonium (Umcka) is generally well tolerated at recommended doses, with gastrointestinal discomfort being the most commonly reported side effect. Side effects are typically mild and dose-dependent, resolving with dose reduction or taking with food. Serious adverse effects are rare at standard supplemental doses.

Does Pelargonium (Umcka) interact with any medications?

Pelargonium (Umcka) may interact with certain prescription medications by affecting absorption, metabolism, or pharmacological effects. Always inform your healthcare provider about all supplements you take, especially before surgery or when starting new medications. Spacing supplements and medications by 2 hours reduces most absorption interactions.

Who should consider taking Pelargonium (Umcka)?

Pelargonium (Umcka) is most appropriate for individuals with confirmed deficiency, suboptimal levels, or specific health conditions supported by clinical evidence. People in higher-risk demographics, including older adults and those with restricted diets, may benefit most. Testing baseline levels before supplementing provides the best guidance.

How long does Pelargonium (Umcka) take to show results?

Pelargonium (Umcka) effects vary by the specific health outcome being targeted, with some benefits appearing within days and others requiring weeks to months of consistent daily use. Correcting a deficiency typically shows improvement within 2-4 weeks. A minimum 8-12 week trial at the recommended dose is advisable before evaluating effectiveness.

Is Pelargonium (Umcka) safe for long-term daily use?

Pelargonium (Umcka) is considered safe for long-term use at recommended doses based on available clinical data. Staying within established upper intake limits minimizes the risk of adverse effects over time. Periodic reassessment with a healthcare provider is recommended, especially if health conditions change.

Can you take too much Pelargonium (Umcka)?

Exceeding the recommended dose of pelargonium (umcka) increases the risk of adverse effects without providing additional benefit. Toxicity risk varies by form and individual factors such as kidney and liver function. Mega-dosing is not supported by clinical evidence and should be avoided.

Can I combine Pelargonium (Umcka) with other supplements?

Pelargonium (Umcka) can generally be combined with complementary supplements, though some combinations may affect absorption or create additive effects. Spacing different supplements by 1-2 hours can reduce absorption competition. Consulting a healthcare professional is advisable when combining multiple supplements targeting the same health pathway.

What should I look for when buying a Pelargonium (Umcka) supplement?

Third-party testing from USP, NSF, or ConsumerLab is the most important quality indicator when purchasing pelargonium (umcka) supplements. Look for products that clearly state the specific form, dose per serving, and any relevant standardization percentages. Avoid proprietary blends that hide individual ingredient amounts.

Continue Reading

References

  1. Meta-analysisTimmer A, Gunther J, Motschall E, Rucker G, Antes G, Kern WV (2013). Pelargonium sidoides extract for treating acute respiratory tract infections. Cochrane Database of Systematic Reviews. DOI PubMed
  2. Matthys H, Eisebitt R, Seith B, Heger M (2003). Efficacy and safety of an extract of Pelargonium sidoides (EPs 7630) in adults with acute bronchitis. Phytomedicine. DOI PubMed