Caper Spurge Seed Classic Formulas — Natural Herb Library

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Expels water and reduces swelling - a harsh downward-draining seed used for severe edema, ascites, and fluid accumulation in robust excess patterns.
Drives out retained fluid and opens the bowels - especially when water retention is complicated by constipation or obstructed elimination.
Breaks up masses and disperses blood stasis - extended to abdominal masses and amenorrhea from congealed obstruction in classical practice.
Kills parasites and attacks stubborn lesions externally - applied in paste form for warts, fungal lesions, snakebite traditions, and difficult skin disorders.

Zi Jin Ding / Yu Shu Dan (紫金锭 / 玉枢丹) - classic formula using Qian Jin Zi to resolve phlegm, attack toxin, and reduce severe swelling.
Qian Jin Zi with Da Huang or Gan Sui - strong downward-draining combinations for edema, water accumulation, and obstructed bowels in excess patterns.
Topical Qian Jin Zi paste - traditional external application for warts, difficult skin lesions, or toxic swellings when a corrosive expulsive seed is desired.

TCM Wiki describes Qian Jin Zi as sour, warm, and slightly toxic, entering the channels of water movement and used for edema, masses, difficult elimination, amenorrhea, phlegm-retained fluid, and parasite-related lesions.
American Dragon places Qian Jin Zi in the harsh cathartic category and stresses its short-term use for edema, constipation with retained fluids, masses, and external parasite or skin applications.
PROCESSING NOTE: the spreadsheet also contains Qian Jin Zi Shuang as a separate future record. That processed powder is derived from the same seed and should be treated as a preparation-state variant rather than a different species.