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Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice.
Non-Standardized Food Allergenic Extract [EPC]
Taraxacum Officinale, commonly known as Dandelion, is utilized clinically as a non-standardized allergenic extract for the diagnosis and treatment of specific allergies. It belongs to the class of Non-Standardized Plant Allergenic Extracts and exhibits various pharmacological activities.
Name
Taraxacum Officinale
Raw Name
TARAXACUM OFFICINALE
Category
Non-Standardized Food Allergenic Extract [EPC]
Drug Count
178
Variant Count
224
Last Verified
February 17, 2026
About Taraxacum Officinale
Taraxacum Officinale, commonly known as Dandelion, is utilized clinically as a non-standardized allergenic extract for the diagnosis and treatment of specific allergies. It belongs to the class of Non-Standardized Plant Allergenic Extracts and exhibits various pharmacological activities.
Detailed information about Taraxacum Officinale
This page is for informational purposes only and does not replace medical advice. Consult a qualified healthcare professional before using any medication containing Taraxacum Officinale.
Taraxacum Officinale, widely recognized as the common dandelion, is a perennial herb that serves a dual role in modern medicine. Clinically, it is classified as a Non-Standardized Plant Allergenic Extract [EPC]. In this capacity, it is used by allergists and immunologists to diagnose sensitivity to dandelion pollen or extracts through skin testing and to treat these allergies via subcutaneous immunotherapy (allergy shots). Beyond its use as an allergen, Taraxacum Officinale is documented in pharmacological databases for its diverse chemical constituents, including sesquiterpene lactones and polyphenols, which contribute to its traditional use as a diuretic and digestive aid.
According to the FDA's classification system, Taraxacum Officinale belongs to a broad group of allergenic extracts used to induce a controlled immune response. While it is often associated with botanical supplements, its inclusion in clinical drug databases as an allergenic extract highlights its importance in managing Type I hypersensitivity reactions (immediate allergic reactions). Healthcare providers utilize these extracts to help the patient's immune system build tolerance to environmental allergens over time.
The mechanism of action for Taraxacum Officinale varies depending on its clinical application. When used as an allergenic extract, it works by interacting with specific Immunoglobulin E (IgE) antibodies bound to mast cells (immune cells that release histamine). During skin testing, the extract triggers a localized release of histamine, resulting in a 'wheal and flare' reaction that confirms an allergy. In immunotherapy, repeated exposure to small, escalating doses of the extract promotes a shift in the immune response from a Th2-mediated (allergic) pathway to a Th1-mediated (non-allergic) or regulatory T-cell pathway.
At a molecular level, the raw extract is noted for several activities, including Ammonium Ion Binding Activity [MoA] and Potassium Ion Exchange Activity [MoA]. These mechanisms suggest that the substance may influence electrolyte balance, particularly by promoting the excretion of water while potentially sparing potassium—a distinct difference from many synthetic diuretics. Furthermore, it has been identified as having Cyclooxygenase Inhibitor [MoA] properties, which may contribute to mild anti-inflammatory effects by reducing prostaglandin synthesis.
Taraxacum Officinale is available in several clinical and commercial forms:
> Important: Only your healthcare provider can determine if Taraxacum Officinale is right for your specific condition.
For the treatment of allergies, the dosage of Taraxacum Officinale extract is highly individualized. It typically begins with a 'build-up phase' where a very low concentration (e.g., 0.05 mL of a 1:10,000 dilution) is injected subcutaneously once or twice weekly. The dose is gradually increased based on patient tolerance until a 'maintenance dose' is reached, which is often 0.5 mL of a 1:10 or 1:20 w/v concentration.
When used as a dietary supplement, typical adult doses range from 500 mg to 2,000 mg of dried root or leaf, taken up to three times daily. However, these doses are not standardized by the FDA for therapeutic efficacy.
Taraxacum Officinale allergenic extracts may be used in children, but the starting dose is often more conservative to minimize the risk of systemic reactions. Use in children under the age of 5 requires careful clinical justification. Oral botanical use in children is generally not recommended without direct supervision from a pediatrician.
Because Taraxacum Officinale has diuretic properties and is eliminated renally, patients with significant kidney disease (e.g., GFR < 30 mL/min) should use this substance with extreme caution to avoid electrolyte imbalances.
No specific dosage adjustments are provided for hepatic impairment; however, as the liver metabolizes many of its active constituents, monitoring is advised.
Elderly patients may be more sensitive to the diuretic effects and potential blood pressure changes associated with Taraxacum Officinale. Lower starting doses for immunotherapy are often recommended.
If a dose of allergy immunotherapy is missed, contact your allergist. Depending on the length of the delay, the dose may need to be reduced to ensure safety. For oral supplements, skip the missed dose and resume your regular schedule; do not double the dose.
Signs of overdose from an allergenic extract include systemic hives, swelling of the throat, wheezing, and a drop in blood pressure (anaphylactic shock). Overdose of oral forms may lead to severe diarrhea, abdominal cramps, and dehydration. In case of emergency, seek immediate medical attention or contact a poison control center.
> Important: Follow your healthcare provider's dosing instructions. Do not adjust your dose without medical guidance.
> Warning: Stop taking Taraxacum Officinale and call your doctor immediately if you experience any of these.
Prolonged use of Taraxacum Officinale as a diuretic without medical supervision may lead to electrolyte imbalances, although the risk is lower than with synthetic loop diuretics. Chronic skin exposure may lead to sensitized contact dermatitis.
While Taraxacum Officinale itself may not have a specific individual black box warning, most Allergenic Extracts carry a general warning regarding the risk of Severe Systemic Allergic Reactions. This warning emphasizes that extracts should only be administered by physicians trained in managing anaphylaxis and that patients with unstable asthma are at a higher risk for fatal reactions.
Report any unusual symptoms to your healthcare provider.
Taraxacum Officinale is generally considered safe for most people when used in appropriate clinical or dietary amounts. However, patients with known allergies to the Asteraceae family (daisies, ragweed, chrysanthemums, marigolds) are at a significantly higher risk of cross-reactivity and severe allergic reactions.
No specific FDA black box warning exists solely for Taraxacum Officinale; however, as a member of the Allergenic Extracts class, it is subject to the class-wide warning regarding the risk of life-threatening anaphylaxis. Administration must occur in a facility equipped with epinephrine and emergency airway management tools.
Taraxacum Officinale generally does not cause sedation. However, if a systemic allergic reaction occurs, dizziness or fainting may happen. Do not drive if you feel unwell after an injection.
Alcohol may exacerbate the diuretic effects of Taraxacum Officinale, potentially leading to dehydration. It may also increase the risk of gastrointestinal irritation.
If immunotherapy is discontinued for a significant period, the dose must be reset to a lower level to prevent an allergic reaction upon restarting. There is no known withdrawal syndrome for oral botanical use.
> Important: Discuss all your medical conditions with your healthcare provider before starting Taraxacum Officinale.
> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking.
Patients allergic to the following may also react to Taraxacum Officinale:
> Important: Your healthcare provider will evaluate your complete medical history before prescribing Taraxacum Officinale.
Taraxacum Officinale is categorized as Pregnancy Category C. There are no adequate and well-controlled studies in pregnant women. While it has been used traditionally, its effects on fetal development are unknown. Immunotherapy is generally not started during pregnancy, though maintenance doses may be continued if the benefit outweighs the risk of anaphylaxis.
It is not known if the active components of Taraxacum Officinale are excreted in human milk. Because many drugs are excreted in milk, caution should be exercised. Traditionally, it has been used as a galactagogue (to increase milk supply), but clinical evidence for safety and efficacy is lacking.
Allergenic extracts are approved for use in children, but dosing must be meticulously managed by a specialist. The safety of high-dose oral supplements in children has not been established.
Elderly patients are at a higher risk for orthostatic hypotension (dizziness upon standing) if the diuretic effect is pronounced. They are also more likely to have pre-existing cardiovascular conditions that make a systemic allergic reaction more dangerous.
In patients with a GFR below 60 mL/min, monitoring for hyperkalemia is essential. Use is generally discouraged in end-stage renal disease (ESRD).
Use with caution in patients with Child-Pugh Class B or C due to potential changes in the metabolism of bitter sesquiterpene lactones.
> Important: Special populations require individualized medical assessment.
Taraxacum Officinale acts as an allergen by cross-linking IgE antibodies on the surface of mast cells and basophils, leading to the degranulation and release of inflammatory mediators like histamine and leukotrienes.
In its botanical role, the high potassium content of the leaves provides a natural 'potassium-sparing' diuretic effect. The bitter compounds (taraxacin) stimulate the gustatory nerves, which in turn increases the production of saliva, gastric acid, and bile. It also exhibits Ammonium Ion Binding Activity, which may assist in metabolic waste processing.
| Parameter | Value |
|---|---|
| Bioavailability | Variable (Oral) |
| Protein Binding | Unknown |
| Half-life | 2–4 hours (Flavonoids) |
| Tmax | 1.5 hours |
| Metabolism | Hepatic (Glucuronidation) |
| Excretion | Renal (80%), Fecal (20%) |
Taraxacum Officinale is classified as a Non-Standardized Plant Allergenic Extract. It shares this class with other botanical allergens like Ambrosia (Ragweed) and Artemisia (Sagebrush).
Medications containing this ingredient
Common questions about Taraxacum Officinale
Taraxacum Officinale is primarily used in clinical medicine as an allergenic extract for diagnosing and treating dandelion allergies. Healthcare providers use it in skin prick tests to identify sensitivities and in allergy shots (immunotherapy) to help patients build long-term tolerance. In traditional and botanical medicine, it is also used as a natural diuretic to reduce water retention and as a digestive aid to stimulate bile flow. It is often included in herbal formulations for liver and kidney support. Always consult a doctor before using it for any therapeutic purpose.
The most common side effects depend on how the substance is administered. When given as an allergy injection, patients frequently experience redness, itching, and swelling at the injection site. When taken orally as a supplement, the most common effects are increased frequency of urination and mild stomach upset or heartburn. Some individuals may also develop a skin rash if they are sensitive to the plant family. Most of these side effects are mild and resolve on their own, but any systemic symptoms should be reported to a doctor.
It is generally advised to limit alcohol consumption while taking Taraxacum Officinale, especially if you are using it for its diuretic properties. Alcohol is also a diuretic, and combining the two can increase the risk of dehydration and electrolyte imbalances. Furthermore, alcohol can irritate the stomach lining, which may worsen the gastrointestinal side effects sometimes caused by dandelion extracts. If you are receiving allergy immunotherapy, alcohol should be avoided around the time of your injection to ensure you can accurately monitor for any allergic reactions. Discuss your alcohol intake with your healthcare provider for personalized guidance.
The safety of Taraxacum Officinale during pregnancy has not been established through rigorous clinical trials, and it is officially classified as Pregnancy Category C. While it is a common food item, concentrated extracts or therapeutic doses for allergy treatment carry unknown risks to the developing fetus. Most allergists will not start a new course of immunotherapy during pregnancy due to the risk of anaphylaxis, which can be dangerous for both the mother and the baby. If you are already on a maintenance dose, your doctor will perform a risk-benefit analysis. Always inform your obstetrician before taking any herbal supplements.
The time it takes for Taraxacum Officinale to work depends on the intended use. For its diuretic effect, patients may notice increased urination within 1 to 2 hours of taking an oral dose. When used for digestive support, it typically works within 30 minutes of ingestion. However, when used as an immunotherapy for allergies, the process is much slower; it can take 3 to 6 months of weekly injections to notice a reduction in allergy symptoms, and full benefits may not be realized for a year or more. Consistency is key for long-term immune system changes.
If you are taking Taraxacum Officinale as an oral supplement, you can generally stop taking it suddenly without experiencing withdrawal symptoms. However, if you are undergoing allergy immunotherapy (allergy shots), stopping suddenly will result in a loss of the progress made toward immune tolerance. If you miss several doses of immunotherapy, your doctor cannot simply resume at the previous dose because your risk of a severe allergic reaction increases. You should always discuss your plans to discontinue treatment with your allergist to ensure a safe transition. If used for chronic fluid retention, stopping may cause the edema to return.
If you miss a dose of an oral Taraxacum Officinale supplement, take it as soon as you remember, unless it is almost time for your next scheduled dose. In that case, skip the missed dose and continue with your regular routine; do not take two doses at once. If you miss an appointment for allergy immunotherapy, contact your allergist immediately. The safety of the next injection depends on how much time has passed since your last one. Your doctor may need to reduce the dose for your next visit to prevent an adverse reaction. Never attempt to self-administer an injectable extract.
There is no clinical evidence to suggest that Taraxacum Officinale causes weight gain. In fact, because it acts as a diuretic, it may cause a temporary decrease in 'water weight' by increasing urine output. This is not a loss of body fat, and the weight will typically return once the substance is discontinued and fluid balance is restored. Some people use it as part of weight management programs for this reason, though it is not a treatment for obesity. If you experience sudden, unexplained weight gain while taking this or any other substance, you should contact your healthcare provider, as it could indicate a medical issue like heart or kidney dysfunction.
Taraxacum Officinale can interact with several types of medications, so caution is necessary. It should be used very carefully with other diuretics, especially potassium-sparing ones like spironolactone, as this can lead to dangerously high potassium levels. It may also interact with blood thinners, diabetes medications, and lithium. If you are receiving allergy shots, taking beta-blockers can make an allergic reaction much more dangerous. Always provide your healthcare provider with a complete list of all prescription drugs, over-the-counter medicines, and herbal supplements you are currently taking to avoid potentially harmful interactions.
Taraxacum Officinale is a biological substance and is not 'generic' in the traditional sense that synthetic drugs are. However, it is available from many different manufacturers as a non-standardized extract or dietary supplement. In the context of allergy treatment, various laboratories produce Taraxacum Officinale extracts for clinical use. While the active ingredient is the same, the concentrations and formulations can vary between brands. For this reason, it is important to stay with the same manufacturer during a course of immunotherapy whenever possible, as switching brands may require a dose adjustment to ensure safety.