The long oyster has long flaky shape, the dorsal ventral margin several parallel, length 10-50cm, high 4-15cm. The right shell is smaller, the fresh slice is thick, the layer or laminar arrangement, the shell outside flat or has several sag, lilac, grey or tan, the inner surface porcelain white, the shell top two side no small teeth. The left shell is very deep, the scales are thicker than the right shell and the top of the shell is small. Hard, cross-sectional, white. Odorless, slightly salty. The oyster in dalian bay has a kind of triangle, the dorsal margin is in the shape of the shape, the right shell is yellowish and loose, with the concentric scales, the scales are wavy and the inner surface is white. The left shell is of concentric scale, with a large number of radiating aid from the top of the shell. It is obvious that the inner surface is a box shaped with a small hinge. The oyster in the near river is round, oval or triangular. The right shell is slightly uneven, and there are grey, purple, brown, yellow and other colors, with concentric scales. The young ones are thin and crisp, and the scales are stacked in layers after years of growth, white on the inside, and sometimes lilac in the margins.

Name: oyster extract

Class: hepatoclitic medicine

Latin: Concha Ostreae

Aliases: oyster clams, left oysters, oyster shells, oyster shells, oyster shells, and left shells

Extraction site: shell

Specifications: 5:1 10:1 20:1

Detection method: uv

Description: tan powder

Mesh size: 100 eyes

USES: medicine health products, beverages and food additives.

Sexual taste: micro cold; Salty; Liver, gallbladder, renal sutra

Functional main treatment: ping liver submergence, soft and solid, astringent. Used for fright insomnia, dizziness tinnitus, scrofula phlegm nucleus, 癓 any a lump in the abdomen.

Usage: internal: decoction, 15 ~ 30g, Fried first; Or to take a pill or to disperse. External use: appropriate amount, grind dust or adjust.

Contraindication: should not take long service, lest cause constipation and indigestion.