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Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice.
Other
Pelargonium Sidoides Root is a phytotherapeutic agent primarily used for acute respiratory tract infections. It belongs to the herbal medicine class and is clinically recognized for its immunomodulatory and antiviral properties in treating bronchitis and sinusitis.
Name
Pelargonium Sidoides Root
Raw Name
PELARGONIUM SIDOIDES ROOT
Category
Other
Drug Count
31
Variant Count
37
Last Verified
February 17, 2026
About Pelargonium Sidoides Root
Pelargonium Sidoides Root is a phytotherapeutic agent primarily used for acute respiratory tract infections. It belongs to the herbal medicine class and is clinically recognized for its immunomodulatory and antiviral properties in treating bronchitis and sinusitis.
Detailed information about Pelargonium Sidoides Root
References used for this content
This page is for informational purposes only and does not replace medical advice. Consult a qualified healthcare professional before using any medication containing Pelargonium Sidoides Root.
Pelargonium Sidoides Root, commonly known in the clinical literature as EPs 7630 (a standardized extract), is a medicinal plant native to South Africa. It belongs to a class of therapeutic agents known as phytopharmaceuticals or herbal medicinal products. While it is often categorized under 'Other' in traditional drug databases, it is recognized by the European Medicines Agency (EMA) and the Committee on Herbal Medicinal Products (HMPC) as a well-established medicinal use for the treatment of acute bronchitis. In the United States, it is primarily available as a dietary supplement or homeopathic preparation, though its clinical profile is extensively documented in international peer-reviewed journals.
Historically, the root was used in South African traditional medicine (Umckaloabo) for respiratory ailments. Modern pharmacological classification identifies it as an immunomodulatory and secretolytic agent. Unlike traditional antibiotics, Pelargonium Sidoides Root does not directly kill bacteria through cell wall inhibition or protein synthesis interference; instead, it enhances the body's innate immune response to pathogens. It is important to note that while it is widely used globally, it is not FDA-approved as a prescription drug for specific medical conditions in the United States, and patients should consult their healthcare provider before beginning therapy.
The mechanism of action for Pelargonium Sidoides Root is multifaceted, involving a 'multi-target' approach typical of complex botanical extracts. At the molecular level, the extract contains highly active polyphenols, specifically coumarins (such as umckalin) and proanthocyanidins. These compounds interact with the immune system by stimulating the activity of macrophages (white blood cells that engulf pathogens). Studies suggest that the extract increases the production of nitric oxide and various cytokines, including interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α), and various interleukins (IL-1, IL-12, and IL-18). This up-regulation of the immune response helps the body more effectively clear viral and bacterial loads.
Furthermore, Pelargonium Sidoides Root exhibits significant secretolytic and mucociliary effects. It has been shown to increase the ciliary beat frequency (CBF) of the respiratory epithelium. By speeding up the movement of these microscopic hairs in the airways, the drug facilitates the clearance of thickened mucus, thereby reducing the duration and severity of cough and congestion. Additionally, the extract possesses modest anti-adhesive properties, preventing certain bacteria (such as Streptococcus pneumoniae) from attaching to healthy lung cells, which can help prevent secondary bacterial infections during a viral cold.
Because Pelargonium Sidoides Root is a complex mixture of numerous constituents, traditional pharmacokinetic studies (which track a single molecule) are challenging. However, researchers often use umckalin and certain gallic acids as markers for absorption and metabolism.
Pelargonium Sidoides Root is primarily utilized for the management of acute respiratory tract infections (ARTIs). Clinical trials, including several Cochrane reviews, have highlighted its efficacy in the following areas:
Pelargonium Sidoides Root is available in several formulations to accommodate different patient needs:
> Important: Only your healthcare provider can determine if Pelargonium Sidoides Root is right for your specific condition. It should not be used as a replacement for conventional medical treatment in cases of severe pneumonia or chronic lung disease.
For the treatment of acute respiratory infections, such as bronchitis or the common cold, the standard adult dosage for Pelargonium Sidoides Root (standardized extract EPs 7630) is as follows:
Treatment should generally continue for 7 to 10 days. Even if symptoms improve rapidly, it is often recommended to continue taking the medication for 2 to 3 days after symptoms have subsided to prevent a relapse of the infection. Do not exceed 14 days of continuous use without consulting a healthcare professional.
Pelargonium Sidoides Root has been studied in pediatric populations, but dosage must be strictly adjusted based on age. Parents should always consult a pediatrician before administering this herbal product to children.
There are no specific dose adjustment guidelines for patients with mild to moderate renal impairment. However, because metabolites are excreted renally, patients with severe kidney disease (Stage 4 or 5) should use this product with extreme caution and only under direct medical supervision.
Pelargonium Sidoides Root is not recommended for patients with severe liver disease. There have been rare reports of hepatotoxicity (liver injury) associated with the use of this extract. Patients with a history of hepatitis or cirrhosis should discuss alternative treatments with their doctor.
No specific dosage adjustments are required for geriatric patients unless they have underlying significant renal or hepatic dysfunction. However, healthcare providers should monitor for potential interactions with other medications the patient may be taking for chronic conditions.
To ensure maximum efficacy and safety, follow these administration guidelines:
If you miss a dose of Pelargonium Sidoides Root, take it as soon as you remember. If it is almost time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not double the dose to catch up, as this increases the risk of gastrointestinal side effects.
Symptoms of an overdose may include severe stomach pain, nausea, vomiting, or diarrhea. In rare cases, an overdose might exacerbate the risk of bleeding or liver enzyme elevation. If you suspect an overdose, contact your local poison control center or seek emergency medical attention immediately. Bring the product packaging with you to the emergency room.
> Important: Follow your healthcare provider's dosing instructions. Do not adjust your dose or stop the medication prematurely without medical guidance, as this may lead to incomplete resolution of your infection.
Pelargonium Sidoides Root is generally well-tolerated, but like all medicinal substances, it can cause side effects. The most frequently reported adverse reactions involve the gastrointestinal system. These symptoms are usually mild and transient.
These side effects occur in a smaller percentage of the population and may require monitoring:
Rare side effects are infrequent but can be more significant:
> Warning: Stop taking Pelargonium Sidoides Root and call your doctor immediately if you experience any of these serious symptoms.
Pelargonium Sidoides Root is intended for short-term use (usually 7 to 14 days). There is limited clinical data regarding the safety of using this extract for several months or years. Long-term use may theoretically lead to:
No FDA black box warnings currently exist for Pelargonium Sidoides Root, as it is not an FDA-approved prescription drug. However, regulatory agencies in Europe (such as the BfArM in Germany) have mandated that product labels include warnings about potential liver injury and the need to monitor for symptoms of hepatotoxicity.
Report any unusual symptoms or persistent side effects to your healthcare provider. Your doctor may perform blood tests to monitor your liver function if you have been taking this product and develop unexplained fatigue or abdominal pain.
Before starting Pelargonium Sidoides Root, patients must be aware that while it is a 'natural' product, it possesses potent pharmacological activity. It should be treated with the same caution as any conventional medication. Patients with a history of autoimmune diseases, liver disorders, or coagulation (bleeding) problems must consult a physician before use. This product is not intended to treat chronic lung conditions like asthma or COPD, and it should not be used as a primary treatment for severe bacterial pneumonia which requires antibiotic therapy.
There are no FDA black box warnings for Pelargonium Sidoides Root. In the United States, it is sold as a dietary supplement or homeopathic remedy. However, healthcare providers should be aware that international regulatory bodies have issued safety communications regarding rare but serious liver injuries associated with various Pelargonium extracts.
For the typical short-term course (7-10 days), routine lab monitoring is generally not required for healthy individuals. However, the following may be necessary for certain patients:
Pelargonium Sidoides Root is not known to cause sedation, dizziness, or cognitive impairment. It is generally considered safe to drive or operate heavy machinery while taking this medication. However, if you experience rare side effects like dizziness or blurred vision, avoid these activities until you know how the drug affects you.
There is no known direct interaction between Pelargonium Sidoides Root and alcohol. However, many liquid extracts of Pelargonium contain a small percentage of ethanol (alcohol) as a preservative or solvent. Patients with a history of alcohol use disorder or those taking disulfiram (Antabuse) should opt for the tablet form rather than the liquid drops. Furthermore, alcohol can irritate the stomach lining, potentially worsening the gastrointestinal side effects of the root extract.
There is no evidence of a withdrawal syndrome or a need for tapering when stopping Pelargonium Sidoides Root. It can be discontinued abruptly once the course of treatment is finished. If symptoms return after discontinuation, consult your healthcare provider to rule out a secondary bacterial infection.
> Important: Discuss all your medical conditions, especially liver health and bleeding history, with your healthcare provider before starting Pelargonium Sidoides Root.
While there are no absolute contraindications listed by the FDA, clinical pharmacology suggests that Pelargonium Sidoides Root should NEVER be used in combination with:
The primary mechanism for drug interactions with Pelargonium Sidoides Root is pharmacodynamic (additive effects on the immune system or blood clotting) rather than pharmacokinetic (interference with liver enzymes like CYP3A4). While some in vitro studies suggest Pelargonium does not significantly inhibit major CYP enzymes, clinical caution is still advised when polypharmacy is involved.
> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking. A complete list helps prevent dangerous interactions.
Pelargonium Sidoides Root must NEVER be used in the following circumstances:
In these situations, a healthcare provider must perform a careful risk-benefit analysis:
Patients who are allergic to other species of geranium or related plants in the Geraniaceae family may experience cross-sensitivity. Symptoms of cross-sensitivity can range from mild contact dermatitis (skin rash) to systemic allergic reactions. If you have a known botanical allergy, discuss this with an allergist before using Pelargonium Sidoides Root.
> Important: Your healthcare provider will evaluate your complete medical history, including your liver enzymes and medication list, before determining if Pelargonium Sidoides Root is safe for you.
Pelargonium Sidoides Root is currently classified as Category C (or equivalent in herbal medicine). This means that there are no adequate and well-controlled studies in pregnant women. Animal reproduction studies have not been extensively performed for the standardized extract EPs 7630.
It is unknown whether the active constituents of Pelargonium Sidoides Root are excreted into human breast milk. Because many of the polyphenols and coumarins have low molecular weights, some transfer is likely. Due to the lack of safety data for nursing infants, the use of this product while breastfeeding is generally not recommended. If treatment is necessary, a healthcare provider may suggest temporarily pumping and discarding milk or using an alternative therapy with a more established safety profile.
Pelargonium Sidoides Root has been studied in children as young as 1 year old for the treatment of acute bronchitis and tonsillopharyngitis.
Clinical trials have included patients over the age of 65, and no specific age-related adverse effects have been identified. However, the elderly are more likely to have:
There is a lack of specific data for patients with kidney disease. Since the kidneys are a primary route of elimination for the metabolites of umckalin and gallic acid, patients with a GFR < 30 mL/min should be monitored closely. No specific dose reduction has been validated, but a lower frequency of dosing (e.g., twice daily instead of three times) may be considered by a physician.
Pelargonium Sidoides Root is contraindicated in patients with significant hepatic impairment. The liver is responsible for metabolizing the coumarin and phenolic components of the extract. In patients with Child-Pugh Class B or C cirrhosis, the risk of further liver injury or altered drug metabolism is too high to recommend use.
> Important: Special populations require individualized medical assessment. Never give herbal supplements to children or pregnant women without professional medical advice.
Pelargonium Sidoides Root (EPs 7630) functions through a complex interplay of immunomodulatory, antiviral, and antibacterial mechanisms.
The onset of action for symptomatic relief is typically within 48 to 72 hours of starting the medication. The duration of effect lasts for approximately 6 to 8 hours, which is why three-times-daily dosing is required. There is no evidence of tolerance development with short-term use (up to 14 days).
| Parameter | Value |
|---|---|
| Bioavailability | Estimated 30-50% (polyphenols) |
| Protein Binding | Moderate (approx. 40-60%) |
| Half-life | 2 - 4 hours (marker compounds) |
| Tmax | 1.5 - 3 hours |
| Metabolism | Hepatic (Phase I and II) |
| Excretion | Renal (primary), Fecal (secondary) |
Pelargonium Sidoides Root is classified as a Phytotherapeutic Respiratory Agent. It is often grouped with other herbal expectorants and immunomodulators like Echinacea purpurea or Ivy leaf extract (Hedera helix), though its specific mechanism in bronchitis is unique among these agents.
Medications containing this ingredient
Umcka Original Coldcare
Cold Relief Zero Sugar Grape
Umcka Coldcare Alcohol-free
Viraclear Eps 7630 Original
Umcka Fastactives Cherry
Cold Relief Syrup Kids Cherry
Cold Relief Kids Cherry
Cold Relief Lemon
Cold Relief Syrup Cherry
Viraclear Eps 7630 Cherry Flavor
Umcka Coldcare Lemon
Umcka Menthol
+ 5 more drugs
Common questions about Pelargonium Sidoides Root
Pelargonium Sidoides Root, often sold under the brand name Umcka or Kaloba, is primarily used to treat acute respiratory tract infections. It is most commonly utilized for acute bronchitis, the common cold, and sinusitis to reduce the severity of symptoms like coughing and congestion. Clinical studies suggest it can shorten the duration of these illnesses by about two days. It works by boosting the immune system's ability to fight viruses and by clearing mucus from the airways. However, it should not be used to treat chronic conditions like asthma without a doctor's supervision.
The most common side effects are gastrointestinal in nature, including stomach pain, heartburn, nausea, and diarrhea. These symptoms occur because the root is high in tannins, which can irritate the lining of the stomach. Some people may also experience mild bleeding, such as minor nosebleeds or bleeding gums, due to the plant's natural coumarin content. Allergic reactions, such as a skin rash or itching, are less common but possible. Most side effects are mild and go away once you stop taking the supplement. If you experience severe abdominal pain or yellowing of the eyes, you should seek medical attention immediately.
There is no known direct interaction between Pelargonium Sidoides Root and alcohol, but caution is still advised. Many liquid formulations of this extract contain a small amount of ethanol as a preservative, which could be an issue for people with alcohol sensitivity. Additionally, alcohol can irritate the stomach and weaken the immune system, potentially counteracting the benefits of the supplement. Drinking alcohol while you have a respiratory infection can also lead to dehydration. It is generally best to avoid alcohol until you have fully recovered from your illness. Always check the label of your specific product for its alcohol content.
The safety of Pelargonium Sidoides Root during pregnancy has not been established through rigorous clinical trials. Because there is insufficient data regarding its effects on a developing fetus, most healthcare providers recommend avoiding it during pregnancy. There is a theoretical concern regarding the coumarin constituents, although they are different from the dangerous coumarins found in some blood thinners. If you are pregnant or planning to become pregnant, you should consult your obstetrician before using any herbal remedies. They can help you weigh the risks and benefits or suggest safer alternatives for managing cold symptoms. Safety during breastfeeding is also unconfirmed, so caution is advised.
Most patients begin to notice an improvement in their symptoms within 48 to 72 hours of starting Pelargonium Sidoides Root. For acute bronchitis, the full course of treatment is usually 7 to 10 days. It is important to continue taking the medication for a few days after your symptoms have disappeared to ensure the infection is completely cleared. If you do not see any improvement after three days of use, or if your symptoms get worse, you should contact a healthcare provider. It is not designed for immediate relief like a rescue inhaler, but rather as a way to speed up the natural healing process. Consistency in dosing three times a day is key to its effectiveness.
Yes, you can stop taking Pelargonium Sidoides Root suddenly without experiencing withdrawal symptoms. Unlike some prescription medications, it does not require a tapering period to safely discontinue use. However, stopping the treatment too early—before the recommended 7 to 10 days—may result in your cold or bronchitis symptoms returning. It is generally advised to finish the entire course prescribed or recommended on the packaging. If you are stopping because of a suspected side effect, you should inform your doctor immediately. Once the symptoms of the respiratory infection have fully resolved for 48 hours, it is usually safe to stop.
If you miss a dose of Pelargonium Sidoides Root, you should take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and simply take the next one at the regular time. Do not take two doses at once to make up for the one you missed, as this can increase the risk of stomach upset and nausea. Maintaining a consistent level of the extract in your system by taking it three times a day is the best way to support your immune system. If you find it hard to remember your doses, using a pill organizer or setting a phone alarm can be helpful. Missing one dose is unlikely to significantly impact the overall effectiveness of the treatment.
There is no clinical evidence to suggest that Pelargonium Sidoides Root causes weight gain. The extract does not contain significant calories, nor does it affect the hormones or metabolic processes typically associated with weight changes. Because it is used for short-term treatment (usually less than two weeks), it is very unlikely to have any impact on body weight. If you notice sudden weight gain or swelling while taking this or any other supplement, it could be a sign of a different medical issue, such as fluid retention, and you should consult a doctor. Most patients tolerate the root well without any changes to their appetite or weight.
Pelargonium Sidoides Root can interact with several types of medications, so you must be cautious. The most significant concern is with blood thinners like warfarin or aspirin, as the root may theoretically increase the risk of bleeding. It may also interfere with immunosuppressant drugs used for organ transplants or autoimmune diseases because it stimulates the immune system. While it is generally safe to take with common over-the-counter pain relievers like acetaminophen, combining it with NSAIDs like ibuprofen might increase stomach irritation. Always provide your doctor or pharmacist with a full list of your current medications and supplements before starting Pelargonium. This helps ensure that there are no dangerous interactions.
Pelargonium Sidoides Root is not a prescription drug, so the concept of 'generic' vs. 'brand name' works differently than with medications like Lipitor or Amoxicillin. It is available under many different brand names, such as Umcka, Kaloba, and Zucol, as well as various store-brand versions. The most important thing to look for is a 'standardized extract,' specifically one labeled as EPs 7630, which is the form used in most clinical trials. Different brands may have different concentrations, so you should always follow the specific dosage instructions on the product you purchase. While generic or store brands may be cheaper, ensure they are from a reputable manufacturer that follows Good Manufacturing Practices (GMP).