Pharmaceutical Name: Pumice; Pumex

Zoological Name: Costazia aculeata 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 & Taste: Salty and cold

Meridian: Lung

Functions:
1. To clear heat in the lungs and resolve phlegm;
2. To soften hardness and release nodules

Indications & Combinations:
1. Phlegm-heat cough manifested as cough with yellow, sticky and thick sputum or sputum difficult to expectorate. Costazia bone (Haifushi) is used with Sea clam shell (Haigeqiao), Trichosanthes fruit (Gualou), Capejasmine (Zhizi) and Natural indigo (Qingdai).

2. Scrofula and goiter caused by phlegm and qi accumulation. Costazia bone (Haifushi) is used with Oyster shell (Muli), Tendrilled fritillary bulb (Chuanbeimu), Scrophularia (Xuanshen) and Laminaria (Kunbu).

Dosage: 6-10 g