Itcontains diosgenin-3-O-β-D-glucopyranoside (polyphyllinA), diosgenin-3-O-α-L- rhamnopyranosyl-(1→4)-β-D-glucopyranoside,diosgenin-3-O-α-L-rhamnopyranosyl -(1→2)-[Α-l-arabinofuranosyl-(1→4)]-β-D-glucopyranoside,diosgenin-3-O-α-L- rhamnopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→4)-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside,diosgenin-3-O-α-L-arabinofuranosyl-(1→4)-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside,pennogenin-3-O-α-L-ara-binofuranosyl-(1→4)-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside,glucopyranoside-3-O-α-L-rhamnopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→4)-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside,pennogenin-3-O-α-L-arabinofuranosyl-(1→4)-β-D-glucopyranoside, pennogenin-hexaacetyl-3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside,diosgenin hexaacetyl-3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside,diosgenin-3-O-α-L-arabinofuranosyl-(1→4)-β-D-glucopyranoside, paristerone, methylprotodioscin,asparagines, alanine, γ-aminobutyricacid, creatinine^[1].

Taste: bitter; property: cold; belong to heart, llung, large intestine and bladder channels.

Function: clearing away the heat-evil and removing toxic agents, purging fire, dampness drying.

Syndromes to be treated: common cold of wind-heat, febrile disease fever, hyperactivity cough , whooping cough, sore throat, hot and humid jaundice, urination disturbance, erysipelas, sore carbuncles, eczema, snakebite.

Oral administration: decoction, 9～15g, large dose can be use to 30～60g, or used as powder, 0.6～3g, put into the capsule to be taken.

Topical application: in right amount, smashed or made into cream to smear on the skin, or drip the eye and ears with the decoction .

Be carefully to be use in the deficiency syndrome patients and Spleen and stomach deficiency patients.