Sea clam shell (Haigeqiao)
Cyclina sinensis Gmelin (Family Veneridae)
Pharmaceutical Name: Concha Meretricis
seu Cyclinae
Zoological Name: 1. Cyclina sinensis Gmelin (Family Veneridae) ; 2. Meretrix meretrix L. (Family Veneridae)
Common Name: 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 & Taste: Bitter, salty
and cold.
Meridians: Lung and stomach.
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 thick yellow sputum, asthma, chest pain and hypochondriac pain. Sea
clam shell (Haigeqiao) is used with Costazia bone (Haifushi), Mulberry bark
(Sangbaipi), Swallowwort rhizome (Baiqian), Capejasmine (Zhizi) and
Trichosanthes fruit (Gualou).
2. Scrofula and goiter. Sea clam shell
(Haigeqiao) is used with Seaweed (Haizao), Laminaria (Kunbu) and Ark shell
(Walengzi) in the formula Hanhua Wan.
Dosage: 10-15 g, decocted in water for
an oral dose.
Cautions & Contraindications: This
substance is normally used in powdered form and should be placed in a cloth bag
for decoction or removed from the decoction with a strainer.
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