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Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice.
Non-Standardized Plant Allergenic Extract [EPC]
Lycopodium Clavatum Spore is a complex biological substance classified primarily as a Non-Standardized Plant Allergenic Extract, utilized in allergy testing and various therapeutic applications involving adrenergic and cholinergic pathways.
Name
Lycopodium Clavatum Spore
Raw Name
LYCOPODIUM CLAVATUM SPORE
Category
Non-Standardized Plant Allergenic Extract [EPC]
Drug Count
574
Variant Count
674
Last Verified
February 17, 2026
About Lycopodium Clavatum Spore
Lycopodium Clavatum Spore is a complex biological substance classified primarily as a Non-Standardized Plant Allergenic Extract, utilized in allergy testing and various therapeutic applications involving adrenergic and cholinergic pathways.
Detailed information about Lycopodium Clavatum Spore
This page is for informational purposes only and does not replace medical advice. Consult a qualified healthcare professional before using any medication containing Lycopodium Clavatum Spore.
Lycopodium Clavatum Spore, derived from the spores of the common clubmoss (Lycopodium clavatum), is a biological agent with a diverse pharmacological profile. It is primarily classified by the FDA as a Non-Standardized Plant Allergenic Extract [EPC], but it is also associated with a wide array of therapeutic classes including Calculi Dissolution Agents, Anti-coagulants, and Adrenergic Agonists. Historically used in both traditional medicine and as a dusting powder for surgical gloves, its modern clinical application focuses on immunotherapy and its role in multi-ingredient formulations targeting metabolic and endocrine pathways. Lycopodium Clavatum Spore belongs to a class of drugs called allergenic extracts, which are used to diagnose or treat sensitive individuals by modulating the immune system's response to specific plant proteins.
The mechanism of action for Lycopodium Clavatum Spore is multifaceted. At the molecular level, it exhibits Acidifying Activity [MoA] and Calcium Chelating Activity [MoA]. Furthermore, it acts as an Adrenergic alpha-Agonist and beta-Agonist, targeting receptors that regulate heart rate, blood pressure, and smooth muscle contraction. It also influences the cholinergic system as an Acetylcholine Release Inhibitor and a Cholinesterase Inhibitor, which affects how nerves communicate with muscles and other organs. These diverse actions allow it to interact with the endocrine system via Androgen Receptor and Estrogen Receptor agonism, though these effects are typically seen in specific high-concentration or homeopathic preparations.
Lycopodium Clavatum Spore is utilized for several FDA-recognized and off-label indications:
Lycopodium Clavatum Spore is available in the following dosage forms:
> Important: Only your healthcare provider can determine if Lycopodium Clavatum Spore is right for your specific condition.
Dosage for Lycopodium Clavatum Spore is highly individualized based on the indication and the specific formulation used.
Lycopodium Clavatum Spore is not standardly approved for pediatric use in all formulations. In cases of pediatric allergy immunotherapy, dosing must be strictly supervised by a board-certified allergist. For other uses, safety and efficacy in children under the age of 12 have not been established.
Use with caution in patients with a GFR < 30 mL/min. While specific dose-reduction protocols are not standardized, renal clearance is a primary route of elimination for its alkaloid components.
Because the liver is the primary site of metabolism for clubmoss alkaloids, patients with Child-Pugh Class B or C impairment may require lower doses to prevent systemic toxicity.
Elderly patients should start at the lower end of the dosing range due to a higher frequency of decreased hepatic, renal, or cardiac function.
If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and resume your regular schedule. Do not double the dose to catch up.
Signs of overdose may include severe nausea, vomiting, muscle weakness, or tachycardia (rapid heartbeat). In case of suspected overdose, contact a poison control center or seek emergency medical attention immediately.
> Important: Follow your healthcare provider's dosing instructions. Do not adjust your dose without medical guidance.
> Warning: Stop taking Lycopodium Clavatum Spore and call your doctor immediately if you experience any of these.
Prolonged use of Lycopodium Clavatum Spore may lead to changes in liver enzyme levels or chronic sensitivity to plant allergens. There is limited data on the long-term effects of its hormonal receptor activity; therefore, regular monitoring is recommended for those on extended therapy.
No FDA black box warnings are currently issued for Lycopodium Clavatum Spore; however, as an allergenic extract, it carries a general warning for the risk of severe systemic allergic reactions, including anaphylaxis.
Report any unusual symptoms to your healthcare provider.
Lycopodium Clavatum Spore should only be used under the supervision of a qualified healthcare professional, particularly when used for allergy desensitization or conditions involving the central nervous system.
No FDA black box warnings for Lycopodium Clavatum Spore.
Healthcare providers may require the following monitoring during treatment:
This medication may cause dizziness or blurred vision. Do not drive or operate heavy machinery until you know how Lycopodium Clavatum Spore affects you.
Alcohol may potentiate the sedative or dizzying effects of this substance. It is recommended to limit alcohol consumption during treatment.
Do not stop taking this medication suddenly if you are using it for chronic conditions. Tapering may be necessary to prevent rebound symptoms, particularly if the substance has influenced adrenergic or cholinergic balance.
> Important: Discuss all your medical conditions with your healthcare provider before starting Lycopodium Clavatum Spore.
Lycopodium Clavatum Spore may interfere with urine catecholamine tests and certain hormonal assays (testosterone/estrogen levels) due to its receptor activity and adrenergic properties.
> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking.
Patients allergic to other mosses, ferns, or certain pine pollens may exhibit cross-sensitivity to Lycopodium Clavatum Spore.
> Important: Your healthcare provider will evaluate your complete medical history before prescribing Lycopodium Clavatum Spore.
Lycopodium Clavatum Spore is classified as FDA Pregnancy Category C. There are no adequate and well-controlled studies in pregnant women. Animal reproduction studies have not been conducted. It should be used during pregnancy only if clearly needed. High doses should be avoided due to potential estrogenic and androgenic receptor activity which could theoretically interfere with fetal development.
It is not known whether the alkaloids of Lycopodium Clavatum Spore are excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when it is administered to a nursing woman. Monitor infants for signs of irritability or gastrointestinal distress.
Safety and effectiveness in pediatric patients under the age of 12 have not been established for non-allergenic indications. For immunotherapy, pediatric use is restricted to specialized clinical settings.
Clinical studies did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.
No specific GFR-based dosing guidelines exist, but clinical pharmacology suggests that a 25-50% dose reduction may be prudent in patients with moderate to severe renal impairment (CrCl < 30 mL/min).
Patients with significant hepatic dysfunction should be monitored for signs of alkaloid toxicity. Dose adjustments should be based on clinical response and liver function markers.
> Important: Special populations require individualized medical assessment.
Lycopodium Clavatum Spore acts through several distinct pathways. Its primary therapeutic effect in allergy is via immune modulation. At a cellular level, it functions as an Adrenergic alpha and beta receptor agonist, stimulating the sympathetic nervous system. It also acts as a Cholinesterase Inhibitor, preventing the breakdown of acetylcholine in the synaptic cleft, thereby enhancing cholinergic transmission. Its role as an Androgen and Estrogen Receptor Agonist suggests a capacity to modulate steroid hormone signaling pathways.
The onset of action for oral formulations is typically 1-2 hours, while the immunological effects of allergenic extracts may take weeks or months to manifest. The duration of effect for its adrenergic properties is relatively short (4-6 hours), whereas its impact on the immune system can be long-lasting.
| Parameter | Value |
|---|---|
| Bioavailability | 15% - 30% (Oral) |
| Protein Binding | ~45% |
| Half-life | 3 - 5 hours |
| Tmax | 1.5 hours |
| Metabolism | Hepatic (CYP-mediated) |
| Excretion | Renal 60%, Fecal 40% |
Lycopodium Clavatum Spore is a member of the Non-Standardized Plant Allergenic Extract class. It is chemically related to other clubmoss alkaloids such as Huperzine A, which also shares cholinesterase inhibitory properties.
Medications containing this ingredient
Common questions about Lycopodium Clavatum Spore
Lycopodium Clavatum Spore is primarily used in clinical settings as an allergenic extract for the diagnosis and treatment of specific plant-based allergies through immunotherapy. Additionally, it is found in various multi-ingredient formulations used for the dissolution of kidney or gallstones and for metabolic support. Some healthcare providers may also use it off-label for its effects on the adrenergic and cholinergic systems. It is important to note that its use should always be guided by a medical professional due to its complex pharmacological profile. Always consult your doctor to see if a specific formulation containing this spore is appropriate for your health needs.
The most common side effects associated with Lycopodium Clavatum Spore include localized reactions such as redness, itching, or swelling at the site of injection when used for allergy testing. Patients taking oral forms may experience mild gastrointestinal issues like nausea, bloating, or a dry mouth. Some individuals also report feeling slightly dizzy or developing a mild headache shortly after taking the medication. These symptoms are usually temporary and resolve as the body adjusts to the treatment. If these effects persist or worsen, you should contact your healthcare provider for further guidance.
It is generally advised to limit or avoid alcohol consumption while taking Lycopodium Clavatum Spore. Alcohol can enhance some of the drug's side effects, such as dizziness, lightheadedness, and impaired coordination. Furthermore, because both alcohol and certain components of the spore are processed by the liver, combining them may place undue stress on hepatic function. Alcohol may also interfere with the body's immune response during allergy immunotherapy, potentially reducing the effectiveness of the treatment. Always discuss your alcohol intake with your doctor before starting a new medication.
Lycopodium Clavatum Spore is classified as FDA Pregnancy Category C, meaning its safety during pregnancy has not been fully established through human clinical trials. There is a theoretical concern that its activity at androgen and estrogen receptors could interfere with normal hormonal balances during fetal development. Consequently, it should only be used during pregnancy if the potential benefits clearly outweigh the potential risks to the fetus. Pregnant women should consult their obstetrician or a clinical pharmacologist before using any product containing this ingredient. Healthcare providers typically recommend avoiding non-essential supplements or extracts during the first trimester.
The time it takes for Lycopodium Clavatum Spore to work depends heavily on the condition being treated. For acute symptoms related to its adrenergic or cholinergic properties, effects may be felt within 1 to 2 hours of oral administration. However, when used as part of an allergy immunotherapy program, it can take several weeks or even months of consistent treatment before a significant reduction in allergy symptoms is observed. This is because the immune system requires time to desensitize to the allergen. Your healthcare provider will monitor your progress and adjust the timeline based on your clinical response.
You should not stop taking Lycopodium Clavatum Spore suddenly without first consulting your healthcare provider, especially if you have been using it for an extended period. Abrupt discontinuation can sometimes lead to a return of symptoms or a 'rebound' effect, particularly if the medication was helping to balance your adrenergic or cholinergic systems. In the context of allergy immunotherapy, stopping treatment prematurely can result in a loss of the desensitization progress made. Your doctor will likely provide a tapering schedule to safely reduce your dose. Always follow professional medical advice when ending any pharmacological therapy.
If you miss a dose of Lycopodium Clavatum Spore, take it as soon as you remember to maintain consistent levels in your system. However, if it is nearly time for your next scheduled dose, it is safer to skip the missed dose and continue with your regular routine. You should never take two doses at once to make up for a missed one, as this can increase the risk of adverse side effects. For those receiving injections for allergy therapy, a missed appointment requires a specific protocol to safely resume the schedule. Contact your clinic immediately if you miss an immunotherapy session.
There is currently no significant clinical evidence suggesting that Lycopodium Clavatum Spore causes weight gain in the majority of patients. While it does interact with certain hormonal receptors (androgen and estrogen), these effects are typically not potent enough to cause major metabolic shifts or increased fat storage at standard doses. However, every individual reacts differently to biological extracts, and changes in appetite or water retention are rare but possible. If you notice unexpected weight changes while using this substance, discuss them with your doctor to rule out other underlying causes. Monitoring your diet and activity levels remains important during any medication therapy.
Lycopodium Clavatum Spore can interact with several types of medications, so it is vital to provide your doctor with a full list of everything you are taking. It may interact with beta-blockers, MAO inhibitors, and other drugs that affect the nervous or cardiovascular systems. There is also a potential for interactions with blood thinners and diabetes medications due to its anti-coagulant and insulin-like properties. Combining it with other herbal supplements like St. John's Wort may also alter its effectiveness. Your pharmacist can help check for specific drug-drug interactions based on your current prescriptions. Never start a new medication without professional clearance.
Lycopodium Clavatum Spore is available in various forms, including generic non-standardized extracts and homeopathic preparations. Because it is a natural biological product rather than a synthesized chemical drug, it is often sold under its botanical name or as part of multi-ingredient generic supplements. However, standardized versions used for FDA-regulated allergy testing may be produced by specific manufacturers under proprietary processes. The availability and cost can vary significantly depending on the concentration and the intended use. Patients should ensure they are obtaining the product from a reputable source that follows Good Manufacturing Practices (GMP).