BlobNotFoundThe specified blob does not exist. RequestId:a1a1e36f-501e-0073-2b7d-1048aa000000 Time:2019-05-22T09:02:34.9337912Z BlobNotFoundThe specified blob does not exist. RequestId:476970ef-501e-00d2-657d-108631000000 Time:2019-05-22T09:02:34.9386279Z BlobNotFoundThe specified blob does not exist. RequestId:f6a462e4-f01e-013e-5a7d-10c81d000000 Time:2019-05-22T09:02:34.9366104Z
BlobNotFoundThe specified blob does not exist. RequestId:95f13ad0-f01e-00f6-547d-101f7f000000 Time:2019-05-22T09:02:34.9365524Z
BlobNotFoundThe specified blob does not exist. RequestId:20b8d99c-601e-00f3-347d-10eb00000000 Time:2019-05-22T09:02:34.9371729Z

有些中药包好了煎

健康 来源:人民网-生命时报 2018年02月26日 10:44 A-A+ 二维码
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原标题:

  包煎是一种常用的中药煎煮方法,指的是煎煮中药时要用纱布包好再入煎。哪些中药需要包煎呢?

  1、质地轻浮类。某些细小、质软、质轻不沉于水的中药材,如菟丝子、葶苈子、地肤子、蛇床子、小茴香、鹤虱等,水煎时易浮在水面上而难以得到充分煎煮,为避免有效物的煎出量相对减少,给过滤药汁带来困难,煎煮时须用纱布包煎。

  2、有毛或杂质。枇杷叶背面有褐色绒毛,石韦叶柄上有星状毛,叶下有星状鳞毛,蚕沙常夹有泥土、碎桑枝叶等,此类药材若不包煎,极易混入汤液,既难于沥尽,服后又易刺激咽喉、消化道而带来不良后果。为安全起见,这些药物宜包煎。

  3、有黏稠液质。白及、神曲、淡豆豉等有黏稠液质的中药,一来易粘锅,二来滤药困难,三来易使药渣吸附造成有效成分损失,四来服药时口中黏滞不爽,易引发恶心。为免除上述弊端,宜包煎。

  4、易致药液混浊。一般矿石、贝壳类药材应打碎先煎,以增加其溶解度,如石膏、代赭石等,但这些药材入汤剂易使汤液混浊,不利服用,宜包煎。

BlobNotFoundThe specified blob does not exist. RequestId:7700aa13-001e-008e-3e7d-1077c8000000 Time:2019-05-22T09:02:34.9435155Z 包煎 | 葶苈子
BlobNotFoundThe specified blob does not exist. RequestId:7041a0a2-a01e-0083-627d-1098c4000000 Time:2019-05-22T09:02:34.9429753Z
我要纠错编辑:邹杨 责任编辑:张福伟
BlobNotFoundThe specified blob does not exist. RequestId:848433c4-701e-00a8-227d-10ec7c000000 Time:2019-05-22T09:02:34.9413558Z
BlobNotFoundThe specified blob does not exist. RequestId:4f7dfd34-a01e-00a1-617d-10f6f2000000 Time:2019-05-22T09:02:34.9481061Z
BlobNotFoundThe specified blob does not exist. RequestId:07170a5f-d01e-0004-2a7d-10cdeb000000 Time:2019-05-22T09:02:34.9457691Z BlobNotFoundThe specified blob does not exist. RequestId:c55fde89-c01e-00dc-327d-106a3a000000 Time:2019-05-22T09:02:34.9472381Z BlobNotFoundThe specified blob does not exist. RequestId:26aeee9c-001e-00e8-6f7d-10c592000000 Time:2019-05-22T09:02:34.9471623Z
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