Imperial Edition of the Complete Library in Four Sections

original: "Qinding Siku Quanshu." This identifies the work as part of the definitive 18th-century imperial collection compiled by the Qianlong Emperor's court.

for Volume Two of the Compendium of Materia Medica
original: "Bencao Gangmu Juan Er Mulu." Volume 2 continues the "Introductory Examples" (Xuli), which serve as the theoretical backbone of the entire 52-volume work.

Part Two of the Introductory Examples

original: "Xuli Xia." While Part One focused on historical lineages and general principles, Part Two deals with the practical logic of combining substances and ensuring safety.

Similarities and Differences in Medicinal Names
original: "Yaoming Tongyi." This section addresses the common problem of "synonyms" in ancient medicine—where different regions used different names for the same plant, or the same name for entirely different substances.

Medicines of Mutual Necessity, Mutual Assistance, Mutual Inhibition, and Mutual AntagonismThese are four of the "Seven Relations" (qiqing) in Chinese pharmacology. Mutual Necessity and Assistance describe herbs that work together to boost healing. Mutual Inhibition and Antagonism describe how one herb can neutralize the toxicity of another or, conversely, how one might ruin the effectiveness of another.
original: "Xiangxu, Xiangshi, Xiangwei, Xiange." Understanding these relationships is essential for a physician when writing a complex prescription involving multiple ingredients.

Various Incompatible Medicines
original: "Xiangfan Zhuyao." This refers to specific pairs of medicines that must never be used together because their combination creates a toxic or harmful reaction in the body.

Dietary Restrictions when Taking Medicine
original: "Fuyao Shiji." Historical Chinese medicine emphasizes that what you eat is as important as the medicine you take; this section lists foods that interfere with the absorption or potency of certain treatments.

Contraindications during Pregnancy
original: "Renshen Jinji." A vital safety guide listing powerful, toxic, or "blood-moving" substances that could cause miscarriage or harm a developing fetus.