Scrophularia (Scrophularia nodosa): Benefits, Dosage, Safety & Evidence

Frequently asked questions

How does Scrophularia nodosa work in the body?

Scrophularia nodosa contains bioactive compounds including harpagoside, aucubin, cinnamic acid derivatives, saponins, and flavonoids. These constituents are believed to support lymphatic circulation and exert mild anti-inflammatory effects on skin and glandular tissues. Harpagoside may modulate inflammatory pathways, while saponins contribute to the herb's traditional cleansing and alterative properties. The herb also demonstrates cardiac-stimulating effects. Evidence level C indicates limited clinical data, with current understanding derived primarily from traditional use and preliminary pharmacological research rather than controlled human trials.

Does Scrophularia interact with heart medications?

Yes, Scrophularia nodosa should not be combined with cardiac glycoside medications such as digoxin. The herb possesses cardiac-stimulating properties that may potentiate the effects of these drugs, potentially increasing the risk of arrhythmias, toxicity, or other adverse cardiac events. Individuals with existing tachycardia or heart rhythm disorders should also avoid this herb. Always consult a qualified healthcare provider before combining herbal remedies with prescription cardiac medications, as interactions can be serious and dose-dependent.

What is the recommended dosage for Scrophularia?

The traditional adult dosage for Scrophularia nodosa is 2-4 grams of dried herb prepared as a tea, taken three times daily. Alternatively, 1-3ml of tincture may be used three times per day. These recommendations are based on traditional use rather than clinical trials (Evidence level C). Higher doses may cause purgative effects. Always start with lower doses to assess tolerance, and consult a qualified medical herbalist or healthcare provider for individualized guidance, particularly if you have underlying health conditions.

Is Scrophularia safe during pregnancy and breastfeeding?

No, Scrophularia nodosa is considered unsafe during pregnancy and should be avoided entirely. The herb contains compounds with cardiac-stimulating properties and may cause uterine contractions or adversely affect fetal development. Traditional use indicates purgative effects at higher doses, which could lead to dehydration and electrolyte imbalances dangerous during pregnancy. Safety data for breastfeeding is insufficient, so avoidance is recommended. Pregnant or nursing individuals should consult a qualified healthcare provider before using any herbal preparations.

What is Scrophularia used for in herbal medicine?

Scrophularia nodosa has been used traditionally for lymphatic congestion, swollen glands, and various chronic skin conditions including eczema, psoriasis, and skin eruptions. Historically known as figwort, it was employed in medieval European medicine for glandular swellings and scrofula. Modern herbalists primarily use it as a lymphatic alterative to support detoxification pathways and promote skin health. Evidence level C indicates limited clinical research exists, with current use based primarily on traditional practice and historical applications rather than controlled trials.

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

Scrophularia (figwort) is a genus of plants containing bioactive iridoids and terpenoids used traditionally for inflammatory and dermatological conditions [PMID: 29125010, 33338592].

Background

The Scrophularia genus (Scrophulariaceae) comprises approximately 350 species, commonly known as figwort, distributed mainly in Mediterranean and Irano-Turanian regions [PMID: 29125010, 34787011].

Traditional uses

Species have been used as folk remedies for inflammatory-related diseases [PMID: 34787011], fever, swelling, constipation, pharyngitis, laryngitis, neuritis, sore throat, rheumatism, and arthritis [PMID: 34500684, 12910369]. S. ningpoensis is used in traditional Chinese medicine to regulate blood sugar levels and immunity [PMID: 39884598], and is noted for fever-reducing and detoxifying effects [PMID: 33338592]. S. nodosa has been documented in Romanian ethnomedicine for dermatologic disorders [PMID: 35914644].

Active compounds

Common compounds include iridoid glycosides (such as aucubin, harpagide, and 8-O-acetylharpagide), triterpenoids, and phenylpropanoid glycosides (such as ningposides A, B, and C) [PMID: 29125010, 26675659, 11014290].

Mechanism of action

Polysaccharides from S. ningpoensis may improve depression-like behavior by inhibiting HTR2A/HTR2C mediated AKT/GSK3β/β-catenin/CBP/BDNF signaling and restoring monoamine neurotransmitter homeostasis [PMID: 39884598]. Angoroside C from S. ningpoensis acts as an AMPK activator [PMID: 40440908]. Harpagide exhibits anti-inflammatory properties and may protect against sepsis-induced acute respiratory distress syndrome via gut microbiota modulation [PMID: 42218858].

Clinical evidence

Evidence DInflammation

Extracts of S. kotschyana and certain iridoid glycosides (e.g., aucubin, verbenalin, loganin) demonstrated significant anti-inflammatory activity in mouse models [PMID: 34787011, 8073089]

Evidence DDepression-like behavior

Polysaccharides from S. ningpoensis (SNPS) ameliorated reserpine-induced depression in mice [PMID: 39884598]

Evidence DType 2 Diabetes Mellitus

Aqueous extract of S. ningpoensis and specifically angoroside C alleviate metabolic syndrome in db/db mice via AMPK activation [PMID: 40440908]

Evidence CSkin Wound Healing

Scrophularia is a component of traditional Kampo herbal ointments used for dermatological issues and wound healing [PMID: 36860294]

Evidence DBacterial Infection

Compounds from S. deserti exhibited moderate antibacterial activity against MRSA and rapidly growing mycobacteria [PMID: 16797620]

Evidence summary

The current evidence is primarily based on in vitro studies and animal models (Level D), with some supporting reviews on traditional use (Level C). There are no human clinical trials provided in the abstracts.

PubMed sources

1.PMID: 36860294 (2023) — Kampo herbal ointments for skin wound healing. · Frontiers in pharmacology
2.PMID: 34801674 (2022) — Remarkable positive effects of figwort (Scrophularia striata) on improving growth performance, and immunohematological parameters of fish. · Fish & shellfish immunology
3.PMID: 28867715 (2017) — New Iridoids from Scrophularia ningpoensis. · Chemical & pharmaceutical bulletin
4.PMID: 11531083 (2001) — Iridoids from Scrophularia genus. · Zeitschrift fur Naturforschung. C, Journal of biosciences
5.PMID: 34787011 (2021) — Anti-inflammatory secondary metabolites from Scrophularia kotschyana. · Human & experimental toxicology

Scrophularia

Sources & Citations

Calculate a safe dose of Scrophularia

Fomes Fomentarius

Kunzea Ambigua

Waltheria Indica

Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Evidence summary

PubMed sources

Government sources

Scrophularia

Sources & Citations

Calculate a safe dose of Scrophularia

Related Herbs

Fomes Fomentarius

Kunzea Ambigua

Waltheria Indica

Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Evidence summary

PubMed sources

Government sources