Shi Yan

Name

Shi Yan (Spirifer’s fossil shell)

1. 石燕
2. Fossilia Spiriferis
3. Spirifer’s fossil shell

The Effect of Shi Yan

Property

Salty, cool; kidney and bladder meridians entered.

Actions

Clear damp-heat, promote diuresis and remove nebula.

Indications

Nebula, difficult urination, stranguria, leucorrhea, anal fistula, hematochezia.

Dosage and Administrations

Decoct 3~9 g. It should be decocted first. Proper dosage is for external application.

Cautions

It is contraindicated to pregnant women and weak people without damp-heat.