Gou Teng (Gambir Vine Stems and Thorns)

Chinese Herb Actions

Chinese Herb Dosage

• What is the dosage of Gou Teng, and how should it be cooked?

  9–15 g in decoction, added late. Gou Teng should be added near the end of the decoction — owner’s notes advise not cooking it longer than about 20 minutes, because prolonged decoction reduces its wind-extinguishing potency.

  Source: owner’s Five Branches notes (3–5 qian; “don’t cook over 20 minutes”); standard materia medica “add near the end” instruction. Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions or contraindications for Gou Teng?

  Gou Teng is generally well tolerated, and owner’s notes record no specific classical contraindication. As a cool herb it is used with care where there is no heat sign, and it is best added late in the decoction so its potency is preserved. Because it is a wind-extinguishing rather than nourishing herb, it does not by itself address an underlying deficiency root.

  Source: owner’s Five Branches notes (“Contra: None”); standard materia medica preparation caution.

Chinese Herb Toxicity & Overdose

• Low. No significant toxicity is reported at normal therapeutic doses; Gou Teng is regarded as a safe herb in traditional use, and no toxicity signal appears in the reviewed research.

  Source: materia medica consensus; reviewed pharmacology literature (below).

Herb-Drug Interactions

• No well-established clinical herb–drug interactions are documented. Because rhynchophylline research reports blood-pressure-lowering and neuroactive effects in laboratory models (below), practitioner caution is reasonable alongside antihypertensive or sedative medication. (Flagged for practitioner confirmation — absence of documented interactions is not proof of safety.)

Western / Biomedical Research

Chinese Herb Clinical Studies & Research

Provided as research context — a summary of published biomedical study, not a therapeutic or medical claim.

• Is there modern research on Gou Teng (Uncaria) and rhynchophylline?

  Yes, though it is largely preclinical. The most-studied constituents are the oxindole alkaloids rhynchophylline and isorhynchophylline. Reviews report neuroprotective, anti-inflammatory, and blood-pressure-lowering activity in cell and animal models — acting on neurotransmission, ion channels, and pathways such as PI3K/Akt/GSK-3β and MAPK/NF-κB. Reviewers explicitly note limited human clinical evidence and challenges such as low blood–brain-barrier permeability and bioavailability.

  Sources: PMC 11336414 (Uncaria rhynchophylla in neurodegenerative diseases: focus on alkaloids, Front Pharmacol, 2024); PubMed 20736055 (antihypertensive & neuroprotective activities of rhynchophylline); PMC 8400357 (anti-inflammatory activity of rhynchophylline in neurological & cardiovascular diseases). Research context, not a therapeutic claim.

Chinese Herb Notes

• How does Gou Teng compare to Tian Ma and Ling Yang Jiao, and what is it combined with?

  Gou Teng is the cool wind-extinguisher that also clears Liver heat; Tian Ma is neutral and broader, and Ling Yang Jiao is colder and stronger for fire. Because it is cooling, Gou Teng is favored when internal wind is generated or driven by heat, with irritability, headache, and red eyes.

  • vs Tian Ma — both extinguish wind and are the paired chief herbs of Tian Ma Gou Teng Yin; Tian Ma is neutral and used across wind patterns (including from phlegm or deficiency), while Gou Teng adds the ability to clear Liver heat.
  • vs Ling Yang Jiao — Ling Yang Jiao is salty and cold and clears Liver fire and heat-generated wind more forcefully; Gou Teng is gentler and cool.

  Common combinations: with Tian Ma (the chief pair of Tian Ma Gou Teng Yin) for rising Liver yang and internal wind; with Ju Hua and Shi Jue Ming for Liver-heat headache, dizziness, and red eyes; with wind-extinguishing animal herbs such as Quan Xie or Wu Gong for stubborn convulsions and childhood spasms.

  Source: owner’s Five Branches notes (differentiation set & combinations).