Tongzhou Milkvetch Seed

Chinese
潼蒺藜
Pinyin
Tong Ji Li
Latin
Semen Astragali Complanati

TCM Properties

Taste
sweet
Temperature
warm
Channels
Kidney, Liver

Traditional Use

Primary Actions

  • Warms and supplements the Kidney while securing essence - Tong Ji Li is a regional name for the Sha Yuan Zi seed and is used for leakage, reproductive weakness, and deficient lower-burner instability.
  • Benefits the eyes through Liver-Kidney support - its traditional vision use fits deficiency blur rather than red inflamed excess-eye patterns.
  • Supports fertility and constitutional resilience - it appears in tonic strategies for chronic weakness where reproductive function and essence have been depleted.

Secondary Actions

  • Tong Ji Li is best understood as a regional or trade synonym rather than as a different botanical medicine from Sha Yuan Zi.
  • Because it is gentle and seed-based, it often participates in longer restorative formulas rather than acute symptom formulas.

Classic Formulas

  • Kidney-securing combinations use Tong Ji Li with Tu Si Zi, Fu Pen Zi, or Qian Shi for nocturnal emission and urinary leakage.
  • Reproductive-tonic formulas may pair it with Du Zhong and Gou Ji when infertility and low-back weakness coexist.
  • Eye-support deficiency formulas combine it with Gou Qi Zi and other Liver-Kidney nourishers rather than with strong heat-clearing eye herbs.

Classical References

  • Traditional Chinese trade literature treats Tong Ji Li as an alternate name for the seed more commonly listed as Sha Yuan Zi or Sha Yuan Ji Li.
  • Its actions remain those of a sweet warm Liver-Kidney tonic that secures essence and improves vision in deficiency patterns.
  • Regional naming should not be mistaken for a separate herb with a different core therapeutic profile.

Modern Research

Active Compounds

  • Complanatoside-type flavonoid glycosides - major quality markers across commercial seed samples
  • Phenolics and antioxidant seed compounds - likely contributors to tissue-protective and metabolic findings
  • Saponin-like constituents - part of the broader tonic pharmacology profile
  • Minor lipid and sterol fractions - supportive nutritional components of the seed

Studied Effects

  • Modern quality-control work on Astragali Complanati Semen identified key bioactive flavonoid glycosides relevant to commercial standardization of Tong Ji Li or Sha Yuan Zi products (PMID 33081333).
  • Astragali Complanati Semen demonstrated a hypocholesterolemic effect in experimental metabolomics research, showing that current pharmacology extends beyond the herb's classical leakage indications (PMID 28753987).
  • The seed enhanced bone formation in osteoporotic rats, offering a modern experimental complement to its traditional low-back and deficiency-support role (PMID 23782721).
  • Preclinical antihypertensive activity has also been reported from total flavonoid fractions of Astragalus complanatus (PMID 16201455).

PubMed References

Safety & Interactions

Contraindications

  • Damp-heat urinary or gynecologic disorders rather than deficiency leakage
  • Clearly excess patterns without underlying weakness

Cautions

  • Tong Ji Li should be matched to deficient leakage and weakness, not to acute infection or burning urinary symptoms.
  • Naming can vary by region and supplier, so authenticated sourcing still matters.
  • MSK page not found - drug interaction data not available from Memorial Sloan Kettering integrative medicine database

Drug Interactions

  • Antihypertensive medications - theoretical additive effect based on preclinical data

Conditions