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Photo of Camptotheca

Camptotheca

喜树 · Xǐ Shù

Practitioner-only herb in cancer adjunct formulas

Properties

CoolingCooling botanicalBitter, Acrid

What it does

Camptotheca has a direct line to modern oncology. Camptothecin, isolated from this tree's bark and seeds, became the source compound for irinotecan and topotecan, two FDA-approved chemotherapy drugs. In TCM, the plant treats hard masses, leukemia, and stubborn carcinomas. Too toxic for direct consumption, but its derivatives have changed cancer treatment. Practitioner-controlled.

How to take it

Capsule

Camptotheca is rarely used as a direct herb in modern TCM due to toxicity. The standardized derivatives irinotecan and topotecan are FDA-approved oncology drugs.

See an oncologist for cancer support. Direct camptotheca use is not advised

Safety

  • Toxic. Causes severe gastrointestinal damage at standard doses
  • Strictly avoid self-use. Modern derivatives (irinotecan, topotecan) are far safer
  • Strictly avoid during pregnancy
  • Not a substitute for cancer treatment. Always work with an oncologist
  • Talk to your doctor before starting, especially if you take medication

Where it comes from

Camptotheca acuminata, the 'happy tree,' is native to southern China. American researchers screened thousands of plants for anticancer compounds in the 1960s, and camptothecin from this species emerged as a hit. Two derivative drugs, irinotecan and topotecan, are now standard FDA-approved chemotherapy. The raw plant is too toxic for direct use, but its discovery shows how traditional knowledge can guide modern drug development.