Chapter 1.4: Six Hundred Evacuatives & Drug Classification (Shadvirechanashatashritiya Adhyaya / शद्विरेचनशताश्रितीय अध्याय)

This major pharmaceutical chapter systematically organizes Ayurvedic materia medica into 600 evacuative formulations, 50 therapeutic drug classes (Mahakashaya) containing 500 herbs, classified by 6 plant part sources and 5 preparation methods. It establishes the principle that understanding pharmacological rationale supersedes rote memorization, and that drug potency must be matched to patient capacity.