The formula of Da Tian Yuan Decoction is Radix Rehmanniae Praeparata, Radix Angelicae Sinensis, Fructus Lycii, Radix Codonopsis Pilosulae, Rhizoma Dioscoreae, Rhizoma Dioscoreae, Cornus Officinalis, Radix et Rhizoma Glycyrrhizae. It is effective in benefiting Qi and nourishing Blood (replenishing Qi and Blood in the body), nourishing the liver and kidney. Da Tian Yuan Decoction is mainly composed of Radix Rehmanniae Praeparata, Radix Angelicae Sinensis, Fructus Lycii, Radix et Rhizoma Ginseng, Radix et Rhizoma Ginseng, Rhizoma Dioscoreae, and Rhizoma Dioscoreae, with the effects of benefiting qi and nourishing blood, nourishing liver and kidney. It can be used clinically for the treatment of deficiency of liver and kidney (weakness of liver and kidney), soreness and weakness of waist and knee (a feeling of soreness and weakness of waist and knee) caused by deficiency of qi and blood, palpitation (rapid heartbeat, often accompanied by panic), dizziness, dizziness, fatigue, lassitude, forgetfulness and other conditions. The adverse reactions and contraindications of this drug are not clear. Patients with yin deficiency and hyperactivity (deficiency of yin fluid and hyperactivity of yang energy), external wind-cold or external wind-heat should use this drug with caution. If the symptoms do not improve significantly within 2 weeks or during the period of taking the medicine, or if the symptoms worsen, the patient should consult a hospital in time. The drug should be taken under the guidance of a professional physician to avoid adverse effects.