Insomnia is characterized by an inability to obtain enough sleep

which is caused by heart spirit with inadequate nourishment and disquieted mind. Yinhuo Tang (YHT) has its origin in

Record of Pattern Identification

written by Chen Shiduo. It was originally used as a prescription for the treatment of "

Yin E

"

composed of Shudihuang (Radix Rehmanniae Praeparata)

Bajitian (Morindae Officinalis Radix)

Fuling (Poria)

Maidong (Ophiopogons Radix)

Wuweizi (Schisandrae Chinensis Fructus). The pathogenesis of the syndrome treated by YHT is the kidney water deficiency

the frenetic stirring of the ministerial fire

the spleen-stomach disharmony

and the abnormal vaporizing of the triple energizer. After clinical practice and exploration

doctors of later generations expanded the application scope of YHT. It is found that YHT has good effects on insomnia with disharmony of the heart and kidney. The disharmony of the heart and kidney is a common syndrome of insomnia. YHT could nourish Yin for suppressing hyperactive Yang

return fire to the origin

coordinate the heart and the kidney. It is consistent with the pathogenesis of insomnia with the disharmony of the heart and kidney. According to the condition

doctors often modify YHT to strengthen the curative effect

in the treatment of insomnia. Combined with clinical cases

this article introduces thoughts on pattern identification and treatment and medication characteristics of treating insomnia with YHT.