Semen Lepidii seu Descurainiae


The seed of Lepidium apetalum Wilid., or Descurainia sophia (L.) Webb ex Pranti, family Cruciferae.

L. apetalum: Seed flatovate, 1.0-1.5 mm long. Surface reddish brown, with two longitudinal grooves, one end round, the other end acutate and retuse, a hilum presenting at the depressed point. D. sophia: Seed somewhat flat-oblong, about 1 mm long. Surface yellow-brown, fine spotted protuberances and two shallowed longitudinal grooves seen under magnifier. Both are acrid and bitter in taste, extremely cold in nature, and attributive to lung and urinary bladder channels.

1. Purge lung-fire, eliminate phlegm and relieve dyspnea: For phlegm-retention syndrome with dyspneic cough or general edema. Recently, used for pneumonia, pulmonary edema, pleural effusion, cor pulmonale and heart failure.
2. Promote diuresis and reduce edema: For edema, pleural effusion and ascites attributive to sthenia-syndrome.

Pharmacological Action
1. Its alcoholic extract acts as cardioglycosides, i.e., enhances myocardial contractility, slows heart rate and decreases the conduction rate in experimental animals.
2. Diuretic.

Administration Decoction: 3-9g.


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