Drug for the treatment of insomnia

Belonging to the technical field of Chinese medicinal preparations, the invention relates to a drug for the treatment of insomnia. The drug is mainly composed of the following 18 herbal medicines: Radix Codonopsis, poria with hostwood, semen Ziziphi Spinosae, schisandra chinensis, rhizoma coptidis, cortex albiziae, Caulis Polygoni Multiflori, and Dens Draconis, etc. With the effects of kidney nourishing and spleen invigorating, heat-fire clearing and liver soothing, heat clearing and phlegm eliminating, qi tonifying and middle warmer harmonizing, mind tranquilizing and nerve soothing, the drug provided in the invention has a good therapeutic effect on insomnia, and has the characteristics of small toxic and side effects, and simple oral administration.