It is the dried middle layer of the stem of Bambusa tuldoides Munro, Phyllostachys nigra( Lodd.) Munro var. henonis(Mituf.)Stapf ex Rendle, or Sinocalamus beecheyanus (Munro) McClure var.pubescens P.E.Li.,family Gramineae. It can be collected all the year round. The greenish middle layer of fresh stem is shaved into fine slices or cut into thin pieces, and then bundled to be dried in shade. The raw or stir-baked with ginger juice are used.
[ Medicinal Properties ]: Sweet and slightly cold; relate to lung, stomach and gallbladder meridians.
[ Medicinal Efficacies ]: Clear heat and resolve phlegm; alleviate restlessness and relieve vomiting.
[ Clinical Applications ]: 1. Phlegm-heat causing cough, inner disturbance by phlegm-fire causing restlessness and insomnia For phlegm-heat causing cough, it is usually combined with Huangqin and Gualou; for invasion of lung and heart by gallbladder-fire manifested as chest oppression, profuse sputum, restlessness, insomnia and fright palpitation, usually with Chenpi, Banxia and Zhishi in Wendan Decoction.
2. Stomach-heat causing vomiting For stomach-heat causing vomiting, it is often combined with Huanglian; for stomach deficiency with heat resulting in vomiting, with Chenpi, Shengjiang and Renshen, such as Jupi Zhuru Decoction.
[ Usage and Dosage ]: 4.5-9g. The raw are used to clear heat and resolve phlegm, and the stir-baked with ginger juice are used to relieve vomiting.
竹茹为禾本科植物青杆竹 Bamusa tuldoides Munro、大头典竹Rinocalamus beecheyanus(Munro) McClure var.pubescens P.F.Li或淡竹 Phyllostachyninra var. henonis Stapf的茎的中间层。主产于长江流域和南方各省。全年均可采制,取新鲜茎,刮去外层青皮,然后将中间层刮成丝状,摊放阴干。生用、炒用或姜汁炙用。