Pharmaceutical Name:

Pumice
Pumex

Zoological Name:

Costazia aculeate Canu et Bassler

Common Name:

Pumice
Costazia bone

Source of Earliest Record:

Rihuazi Bencao

Part Used & Method for Pharmaceutical Preparations:

The dried bone is collected from Costazia Sp.         

Properties and Taste:

Salty and cold

Meridian:

Lung

Functions:

To clear heat in the lungs and resolve phlegm
To soften hardness and release nodules

Indications and Combinations:

1.      Phlegm-heat cough manifested as cough with yellow, sticky and think sputum or sputum difficult to expectorate.
*Use with Sea clam shell (Haigeqiao), Trichosanthes fruit (Gualou), Capejasmine (Zhizi) and Natural indigo (Qingdai).

2.      Scrofula and goiter caused by phlegm and qi accumulation.
*Use with Oyster shell (Muli), Tendrilled fritillary bulb (Chuanbeimu), Scrophularia (Xuanshen) and Laminaria (Kunbu).

Dosage:

6-10 g