Schist (Meng Shi Umbrella) … Classic Formulas
Meng Shi · Lapis Micae seu Chloriti
Primary Actions
- Heavily descends Qi and transforms stubborn phlegm ... generic Meng Shi is reserved for old, thick, clumped phlegm that ordinary phlegm herbs cannot easily clear.
- Calms the Liver and stops convulsions ... seizure, mania, agitation, and phlegm-fire obstruction are part of the classic indication set.
- Breaks focal fullness and helps clear constipation linked to phlegm-fire and accumulation ... the mineral's heaviness is central to this downward-driving role.
Classic Formulas
- Meng Shi Gun Tan Wan ... the archetypal formula for severe old phlegm, constipation, mania, seizures, and chest obstruction.
- Ding Xian Wan ... seizure-oriented phlegm-fire formula logic in which Meng Shi drags obstructing phlegm downward.
- Dao Tan Tang modifications ... later practice adds Meng Shi when ordinary phlegm-transforming herbs are not enough.
Classical Text References
- Older sources often use the simple name Meng Shi for material later differentiated more clearly into Qing Meng Shi and Jin Meng Shi.
- Traditional commentary emphasizes heaviness, downward drive, and use only in excess patterns with stubborn phlegm rather than in weak constitutions.
- Modern clinical teaching still treats processed form as essential because the raw mineral is too rough for routine internal use.