Calcined Ark Shell Classic Formulas

Primary Actions

Controls acidity and stops pain - the calcined form is classically used for acid regurgitation, gastric discomfort, epigastric pain, and sour reflux when excess stomach acid or constrained Stomach Qi is prominent.
Astringes and stops bleeding in ulcerative stomach disorders - powdered Duan Wa Leng Zi is used when acid injury contributes to hematemesis, occult ulcer bleeding, or painful erosive stomach conditions.
Retains a secondary hardness-softening and stasis-transforming role - although milder in this respect than the raw shell, the processed form still belongs to the Wa Leng Zi lineage that softens hardness and disperses accumulations.

Wa Leng Zi San (瓦楞子散) - classic powder for acid regurgitation and epigastric pain in which calcined Wa Leng Zi is the key antacid shell.
Calcined Wa Leng Zi with Yan Hu Suo and Wu Bei Zi - a traditional combination pattern for ulcer-type stomach pain with sour regurgitation and fixed epigastric discomfort.
Calcined Wa Leng Zi with Hai Piao Xiao - paired when a stronger mineral astringent and acid-neutralizing strategy is needed for stomach pain with bleeding.

Me & Qi and older materia medica traditions agree that Wa Leng Zi softens hardness, transforms stasis, and especially controls acidity and stops pain in the Stomach.
Li Shizhen's Ben Cao Gang Mu, as summarized in the existing raw-shell record, specifically notes that calcining Wa Leng Zi strengthens the antacid and hemostatic functions.
PREPARATION NOTE: this file focuses on Duan Wa Leng Zi, the calcined ark shell powder used more specifically for acid regurgitation and ulcer-type bleeding than the broader raw-shell record.