Herba Spirodelae
May 28, 2009 by Jack
Name: Herba Spirodelae
Resource: Herb of Spirodela polyrrhiza(L.)Schleid.,family Lemnaceae.
Characteristic: An aquatic herb.Leaf-like stem flat-ovate,l or 2-5 blades clustered,green at the upper surface and purple red on the back,with 5-11 palmate veins,and numerous slender roots.Acrid in taste,cold in nature,and attributive to lung channel.
Pharmacodynamics: 1.Induce sweating to expel the exogenous evils from the body surface and let out the skin eruption:For common cold of wind-heat type with fever and anhidrosis,the early stage of measles and other eruptive diseases with incomplete eruption. 2.Promote diuresis to reduce edema:For superficies-syndrome with edema.
Pharmacological: 1.Containing potassium acetate and chloride which exert diuretic effect. 2.Oral administration of its decoction or infusion(2g/kg)can reduce vaccine-induced fever in rabbits. 3.Cardiotonic on the heart of frog weakened by quinine.Also causing constriction of blood vessels and rising of blood pressure.
Usage: Decoction:3-10g.
Caution:
