TCM Properties

Traditional Use

Clears Heat and resolves toxicity — febrile illness, tonsillitis, pharyngitis, abscess, and snake or insect bite
Promotes urination and reduces edema — nephritis, oliguria, and lower-body edema from Kidney-channel Damp-Heat
Anti-inflammatory, stops pain — rheumatic joint pain and Bi syndrome with Heat signs
Cools Blood — hematuria, epistaxis, and skin lesions from Blood Heat

Clears Lung Heat and stops cough — productive cough with yellow phlegm and bronchitis with fever
External application — fresh herb poultice for carbuncles, furuncles, and venomous bites in southern China folk practice

Ling Nan Cao Yao Zhi (岭南草药志; Flora of Lingnan Medicinal Herbs): documents Di Dan Tou (Elephantopus scaber) as a principal Heat-clearing and toxin-resolving herb of south China folk medicine — widely used in Guangdong, Fujian, and Guangxi provinces for febrile illness, tonsillitis, and nephritis; not present in classical northern TCM formularies as it is a subtropical species of south and southeast China
Quan Guo Zhong Cao Yao Hui Bian: lists Di Dan Tou for upper respiratory infection with fever, urinary tract infection, and emergency topical treatment of snake bite

Deoxyelephantopin (major sesquiterpene lactone; principal bioactive; cytotoxic and anti-inflammatory; alkylates NF-κB and Nrf2 pathway proteins)
Elephantopin (sesquiterpene lactone; cytotoxic, anti-inflammatory)
Isodeoxyelephantopin (sesquiterpene lactone; anti-inflammatory, anticancer)
Luteolin and apigenin (flavonoids; anti-inflammatory, antioxidant)
Betulinic acid and oleanolic acid (pentacyclic triterpenoids; anti-inflammatory, antitumor)
Stigmasterol and β-sitosterol (phytosterols; anti-inflammatory)
Chlorogenic acid and caffeic acid (phenolic acids; antioxidant)

Anticancer: deoxyelephantopin (DEP) induces apoptosis and cell-cycle arrest across multiple cancer cell lines (breast, lung, cervical, colon) via ROS generation, NF-κB suppression, and Bcl-2 downregulation; selectively cytotoxic to cancer cells while sparing normal cells in comparative in vitro assays — provides mechanistic basis for the toxin-resolving folk application against hard, hot inflammatory swellings
Anti-inflammatory: aqueous and ethanol extracts of E. scaber significantly inhibit TNF-α, IL-6, and COX-2 production in LPS-stimulated macrophages; in vivo studies confirm dose-dependent reduction of carrageenan-induced paw edema — validates the Bi-syndrome and febrile toxin-clearing traditional uses in south China
Nephroprotective: E. scaber extract reduces serum creatinine and BUN in cisplatin-induced nephrotoxicity models and partially restores glomerular architecture in histopathological examination — consistent with the traditional nephritis and oliguria application widely practised in Guangdong folk medicine

Cold patterns — absence of fever, clear or pale secretions, aversion to cold; cold-natured herb will aggravate Yang deficiency
Spleen-Stomach Deficiency Cold with loose stools
Pregnancy — sesquiterpene lactones (deoxyelephantopin, elephantopin) are cytotoxic; embryotoxicity not formally excluded; avoid

Standard dose: 15–30 g dried herb in decoction; 30–60 g fresh herb; external use: fresh herb macerated as poultice
SAFETY-CRITICAL: deoxyelephantopin and elephantopin are potent sesquiterpene lactones with confirmed cytotoxic activity — prolonged high-dose internal use without clinical supervision is not recommended
Sesquiterpene lactone contact sensitisation: cross-reactive dermatitis possible in Asteraceae-allergic individuals; patch test recommended before topical use
Cytotoxic chemotherapy: theoretical additive cytotoxicity — avoid concurrent use without oncology supervision

Cytotoxic chemotherapy agents — additive cytotoxic effect via deoxyelephantopin; avoid without oncology supervision