Lycopodium clavatum (Lycopodium clavatum): Benefits, Dosage, Safety & Evidence

Frequently asked questions

How does Lycopodium clavatum work medicinally?

Lycopodium clavatum contains lycopodine alkaloids and huperzine-related compounds that may affect the nervous system and urinary tract. The alkaloids are thought to possess antispasmodic properties that could help relieve urinary discomfort and smooth muscle spasms. The spores contain triterpenoids and flavonoids with potential anti-inflammatory effects. However, the exact mechanisms remain poorly understood, and most evidence comes from traditional use and preliminary research rather than controlled clinical trials (Evidence Level: C).

Does Lycopodium clavatum interact with medications?

Lycopodium clavatum may interact with medications metabolized by the liver due to its potential hepatotoxic effects. The huperzine-related compounds could theoretically interact with cholinergic medications, acetylcholinesterase inhibitors, or drugs affecting cognitive function. Those taking anticoagulants, antiplatelet drugs, or medications with liver metabolism concerns should exercise caution. Always consult a qualified healthcare provider before combining Lycopodium clavatum with prescription medications (Evidence Level: C/Traditional).

What is the recommended dosage for Lycopodium clavatum?

The typical adult dosage for Lycopodium clavatum is 2-3 grams of dried herb prepared as a tea, taken twice daily. For external use, the spores are traditionally applied as a dusting powder for skin conditions. Homeopathic preparations use highly diluted forms following homeopathic prescribing guidelines. Dosage should not exceed recommended amounts due to potential liver toxicity with excessive use. Always follow product-specific instructions or consult a qualified practitioner (Evidence Level: C/Traditional).

Is Lycopodium clavatum safe during pregnancy and breastfeeding?

Lycopodium clavatum is considered unsafe during pregnancy and breastfeeding. The lycopodine alkaloids present in the plant may cross the placenta or pass into breast milk, potentially harming fetal or infant development. Additionally, the herb's potential liver toxicity poses additional risks during these sensitive periods. Women who are pregnant, planning pregnancy, or breastfeeding should avoid Lycopodium clavatum entirely and consult a healthcare provider for safe alternatives (Evidence Level: C/Traditional).

Can Lycopodium clavatum help with kidney stones?

Lycopodium clavatum has been used traditionally to support kidney and urinary tract health, including for kidney stones and urinary conditions. Proponents suggest its antispasmodic properties may help ease urinary discomfort. However, scientific evidence supporting its effectiveness for kidney stones is limited to traditional use and preliminary studies (Evidence Level: C). Those with kidney stones should seek proper medical evaluation, as untreated stones can cause serious complications. This herb should not replace conventional medical care.

PubMed-compiled information sheet

This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.

Compiled from 30 PubMed articles · model: gemma4:31b

Summary

Lycopodium clavatum is a club moss used in traditional medicine for various inflammatory and systemic disorders [PMID:32059153, 41834667]. Recent research highlights its potential in anticancer activity, anti-inflammatory effects, and as a biocompatible drug delivery system [PMID:37658180, 32059153, 31270392].

Background

Lycopodium clavatum is a basal vascular plant, also known as club moss, found in Europe and tropical regions [PMID:37658180, 17504461]. It is characterized by a unique conducting system and the production of robust sporopollenin-based spores [PMID:17504461, 31270392].

Traditional uses

It has been used in traditional medicine for the treatment of kidney disorders, rheumatic arthritis, cystitis, and gastritis [PMID:32059153].

Active compounds

Bioactive components include lycopodane-type alkaloids (such as lycopodine [PMID:16962272]), triterpenoids (including lycomclavatols A-C and serratane triterpenoids [PMID:34989301, 32059153]), flavonoids, phenolics [PMID:41834667], and the seco-triterpenoid alpha-onocerin [PMID:26663356].

Mechanism of action

The herb's extracts may induce apoptosis in cancer cells by activating proteins such as BAX, Caspase-3, and Caspase-9 [PMID:37658180]. Anti-inflammatory effects are mediated through the inhibition of lipopolysaccharide (LPS)-induced nitric oxide (NO), reduction of iNOS and COX-2 expression, and downregulation of pro-inflammatory cytokines like IL-1beta and IL-8 [PMID:32059153, 34989301]. Some components also exhibit acetylcholinesterase (AChE) inhibitory activity [PMID:31354854].

Clinical evidence

Evidence DBreast Cancer (MCF-7 cells)

Water and ethanol extracts showed dose and time-dependent cytotoxic effects and activated apoptosis-related proteins [PMID:37658180]

Evidence DColon Cancer (Colo-320 cells)

Combination of L. clavatum extract and quercetin reduced cell growth [PMID:32396140]

Evidence DHeLa Cells (Cancer)

Homeopathically-potentized ultra-high dilutions (5C and 15C) caused cell death through apoptosis [PMID:23972240]

Evidence DInflammation (Mice model)

Chloroform extract and alkaloid fraction (majorly lycopodine) displayed marked anti-inflammatory effects in acetic acid-induced capillary permeability tests [PMID:16962272]

Evidence DMemory Impairment (Rat model)

Lyc Mother Tincture improved learning and memory functions and cerebral blood flow in STZ-induced memory-impaired rats [PMID:25576268]

Evidence DTrypanosoma cruzi Infection (Rat model)

Safety & adverse effects

Homeopathic dilutions (5C and 15C) showed little or no cytotoxic effect in normal peripheral blood mononuclear cells [PMID:23972240].

Evidence summary

The current evidence is primarily based on in vitro cell line studies and in vivo animal models (Level D). There is a lack of high-level clinical trial data (Level A or B) in the provided abstracts.

PubMed sources

1.PMID: 13277900 (1955) — Lycopodium clavatum. · The Hahnemannian
2.PMID: 31270392 (2019) — Species-Specific Biodegradation of Sporopollenin-Based Microcapsules. · Scientific reports
3.PMID: 39124238 (2024) — Origin and Persistence of Lycopodium clavatum and Lycopodium annotinum (Lycopodiaceae) in Scots Pine Forests. · Plants (Basel, Switzerland)
4.PMID: 29772298 (2018) — Abietane diterpenoids from Lycopodium complanatum. · Fitoterapia
5.PMID: 35772026 (2022) — Biobased Spore Microcapsules for Asphalt Self-Healing. · ACS applied materials & interfaces
6.PMID: 37658180

Lycopodium clavatum

Sources & Citations

Calculate a safe dose of Lycopodium clavatum

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Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources

Lycopodium clavatum

Sources & Citations

Calculate a safe dose of Lycopodium clavatum

Related Herbs

Petrorhagia saxifraga

Sariva

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Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources