Sea Clam Shell (Haigeqiao)

Sea Clam Shell (Haigeqiao)

Pharmaceutical Name: Concha Meretricis seu Cyclinae
Botanical Name: Cyclina sinensis Gmelin
Meretrix meretrix L.
Common Name:Sea Clam shell
Source of Earliest Record: Shennong Bencao Jing
Part Used & Method for Pharmaceutical Preparations: The clam shells are collected from the seashore and pounded into powder.
Properties and Taste: Bitter, salty and cold
Meridian: Lung and stomach
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 think yellow sputum, asthma, chest pain and hypochondriac pain.
*Use with Costazia bone (Haifushi), Swallowwort rhizome (Baiqian), Mulberry bark (Sangbaipi), Capejasmine (Zhizi) and Trichosanthes fruit (Gualou).

2.  Scrofula and goiter.
*Use with Laminaria (Kunbu), Seaweed (Haizao) and Ark shell (Walengzi) in the formula Hanhua Wan.
Dosage: 10-15 g
Cautions: This substance is normally used in powered form and should be placed in a cloth bag for decoction or removed from the decoction with a strainer.