All-Grass of Blushred Rabdosia

Chinese
冬凌草
Pinyin
Dong Ling Cao
Latin
Herba Rabdosiae Rubescentis

TCM Properties

Taste
bitter, sweet
Temperature
cold
Channels
Lung, Stomach, Liver

Traditional Use

Primary Actions

  • Clears Heat and relieves toxicity — used for sore throat, pharyngitis, tonsillitis, and toxic heat patterns in the upper body
  • Resolves phlegm and stops cough — used for persistent cough, wheezing, chest tightness, and hemoptysis from heat in the Lung

Secondary Actions

  • Disperses stagnation and reduces pain — used for chest and epigastric pain from qi stagnation with heat
  • Traditionally drunk as a folk tea for more than 1000 years in northern China for general health maintenance

Modern Research

Active Compounds

  • Oridonin — primary ent-kaurane diterpenoid; broad anticancer, anti-inflammatory, hepatorenal protective, and cardioprotective activity; key active constituent
  • Ponicidin — secondary diterpenoid; synergistic anticancer and antitumor properties
  • Rubescensins — series of diterpenoids contributing to overall bioactivity profile
  • Flavonoids — antioxidant secondary metabolites present alongside diterpenoids

Studied Effects

  • Anticancer — oridonin induces apoptosis in gastric, lung, breast, colorectal, and pancreatic cancer cell lines via NF-κB and caspase pathway activation (PMID 34295243)
  • Anti-inflammatory — oridonin suppresses NF-κB and NLRP3 inflammasome activation; reduces IL-6, TNF-α, and NO in macrophage models (PMID 34295243)
  • Hepatorenal protective — ameliorates liver and kidney injury via oxidative stress reduction; cardioprotective against myocardial ischemia-reperfusion injury (PMID 34295243)
  • Derivatives development — structural modifications to improve oridonin's pharmaceutical properties while maintaining or enhancing anticancer efficacy (PMID 28425866)

PubMed References

Safety & Interactions

Contraindications

  • Spleen-Stomach deficiency-cold — cold bitter nature may aggravate cold patterns in the Middle Jiao

Cautions

  • Oridonin hepatotoxicity observed in animal models at high doses — monitor liver function with extended use (PMID 34295243)
  • Potential CYP450 enzyme induction — theoretical drug-drug interactions with medications metabolized by CYP450 enzymes; formal interaction studies needed (PMID 34295243)
  • Erythrocyte toxicity and developmental toxicity (zebrafish embryos) observed at high concentrations — dose-dependent toxicity requires clarification
  • MSK page not found — drug interaction data not available from Memorial Sloan Kettering integrative medicine database

Conditions

  • Pharyngitis Traditional ★★★★☆
  • Cough Traditional ★★★☆☆
  • Cancer Preclinical ★★☆☆☆