Pueraria lobata (radix)

Botanical Overview

Pueraria lobata (Fabaceae), commonly known as Kudzu root or Ge Gen, is a climbing vine native to East Asia. The medicinal part is the root (radix), widely used in Traditional Chinese Medicine and increasingly studied in Western herbal practice.

Energetics

Kudzu root exhibits a cooling and moistening energetic profile, with a sweet and acrid taste. It has an ascending directionality and is generally relaxing in tonicity, primarily influencing the body’s qi.

Primary Actions

  • Antioxidant
  • Anti-inflammatory
  • Cardioprotective
  • Detoxifying
  • Muscle relaxant

Indications

Western

  • Hypertension
  • Alcohol intoxication
  • Migraine
  • Fever
  • Diarrhea
  • Neck stiffness

Syndromes

  • Cardiovascular disorders
  • Alcohol-related conditions
  • Muscle tension

TCM

  • Neck stiffness and pain
  • Fever
  • Diarrhea
  • Thirst
  • Headache
  • Flushed face

Syndromes

  • Exterior syndrome with muscle tightness
  • Muscle and joint pain
  • Yang deficiency-related diarrhea

Ayurveda

Not traditionally used or insufficient data available.

Unani

No significant traditional uses documented.

Constituents & Mechanisms

The root contains isoflavones such as puerarin, daidzein, daidzin, genistein, flavonoids, and saponins which contribute to its antioxidant, anti-inflammatory, and cardiovascular effects.

Dosage & Preparations

  • Decoction 9-30 g daily
  • Powder 3-10 g daily
  • Extract standardized to puerarin 10-30 mg/day
  • Tincture 1:5 30-40% ethanol 2-5 mL 1-3 times daily

Safety & Contraindications

Generally safe with appropriate use. Use cautiously during pregnancy and lactation due to lack of sufficient safety data. Possible interactions with antihypertensives and anticoagulants warrant monitoring. Overconsumption may lead to gastrointestinal upset.

Astrological Correspondences

No reliably sourced planetary or elemental rulers are identified for Pueraria lobata.

Selected References

  • WHO Monographs on Selected Medicinal Plants: Pueraria lobata (Willd.) Ohwi (2007)
  • Pharmacopoeia of the People’s Republic of China (2020)
  • NIH/National Center for Complementary and Integrative Health, Kudzu Root (2020)
  • Zhang et al., Phytochemistry and pharmacology of Pueraria lobata (2019)