Aliases: Poria cocos, Poria cocos, Poria cocos, Chi Poria cocos, Bai Poria cocos
Source: This product is the dried sclerotia of Poria cocos (Schw.) Wolf, a fungus of the Poria cocos family. Excavate more than July to September, remove the sand after digging, pile up "sweat", spread out until the surface is dry, then "sweat", repeat several times until wrinkles appear and most of the internal moisture is lost, then dry in the shade , Called "Poria cocos"; or cut fresh Poria according to different parts, dried in the shade, called "Poria cocos" and "Poria cocos" respectively.
Characters Poria: Spherical, oval, oblate or irregular clumps, with different sizes. The skin is thin and rough, brown to dark brown, with obvious shrinkage texture. Body weight, solid quality, granular cross section, some are cracked, the outer layer is light brown, the inner layer is white, a few are light red, and some have pine roots in the middle. Odorless, light taste, sticky teeth when chewing.
Poria cocos: Poria cocos are cut off, with different shapes and sizes. The outside is brown to dark brown, and the inside is white or light brown. The texture is relatively soft and slightly elastic.
Poria: Poria are cut after peeling. They are in the shape of pieces and vary in size. White, light red or light brown.
Tuckahoe: Cut the brown-red or light-red part into blocks or slices.
White Tuckahoe: Cut off the white part of Tuckahoe.
Identification: (1) This product is off-white powder. Irregular granular agglomerates and branched agglomerates are colorless, and gradually melt in chloral hydrate. The mycelium is colorless or light brown, slender, slightly curved, branched, 3-8μm in diameter, a few to 16μm.
(2) Take 1g of this product powder, add 10ml of acetone, heat to reflux for 10 minutes, filter, evaporate the filtrate to dryness, add 1ml of glacial acetic acid to the residue to dissolve, add 1 drop of sulfuric acid, it appears light red, and then turns light brown.
(3) Take a small amount of tuckahoe tablets or powder, add 1 drop of potassium iodide iodine test solution, it looks dark red.
Prepare Poria cocos, soak, wash, steam a little after moistening, cut the skin and pieces or cut thick slices in time, and dry.
Nature and flavor: sweet, light, flat.
Gui Jing: Gui Xin, Lung, Spleen, Kidney Channel.
Functions and indications: diuresis and dampness, invigorating spleen and calming heart. It is used for edema, oliguria, dizziness, spleen deficiency, lack of food, loose stools, diarrhea, restlessness, palpitations, and insomnia.
Usage and dosage: 9～15g.
Storage: Store in a dry place, protected from moisture.
Remarks: (1) Those who are partial to cold and dampness can be compatible with Guizhi, Atractylodes macrocephala; those who are partial to damp heat can be compatible with Polyporus umbellatus and Alisma orientalis; those with spleen deficiency can be compatible with Codonopsis, Astragalus, Atractylodes, etc.; Those who belong to asthenia and cold can also be used with Aconite and Atractylodes. For diarrhea caused by spleen deficiency and dysfunction, the application of Poria has the effect of taking into account the specimen, and it is often compatible with Codonopsis, Atractylodes, and Chinese yam. It can be used as an adjuvant to invigorate the lungs and spleen and treat Qi deficiency. For the symptoms of spleen deficiency that can not transport water and dampness, stop gathering and transform to produce phlegm, can use Pinellia and tangerine peel together, and can also be used together with Guizhi and Baizhu. It can treat phlegm dampness into the collaterals, shoulder soreness and backache. It is used for restlessness, palpitations, insomnia, etc. It is often compatible with ginseng, polygala, and jujube seed.
Extract from "Chinese Pharmacopoeia"
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