Radix Rehmanniae Praeparata with Cornus Officinalis has the effect of nourishing the liver and kidney. 1. Radix Rehmanniae Praeparata (熟地): also known as Radix Rehmanniae Praeparata (熟地黄), is sweet in flavor, slightly warm in nature, and belongs to the liver and kidney channels. It has the effect of nourishing the blood, nourishing Yin, benefiting the essence and filling up the marrow. It is used in treating blood deficiency and yellowish color, menstrual disorders, menstrual leakage (excessive menstrual flow or more than a few drops of menstruation), night sweating, spermatorrhea, deficiency of essence and blood, lumbar and knee soreness, dizziness and dizziness, tinnitus and deafness, and premature whitening of beard and hair, etc. It is also used in treating the symptoms of blood deficiency and yellowish color. The drug is sticky and greasy, not conducive to digestion, so the spleen and stomach stagnation, phlegm-dampness internal obstruction (phlegm and dampness blocking the body organs and meridians) caused by the epigastric (abdomen) distension, less food and loose stools (feces sparse and unshapely) people should not be served. 2. Cornus officinalis: sour taste, astringent, slightly warm, attributed to the liver, kidney meridian. It has the effect of tonifying the liver and kidney, astringent and astringent (astringent consolidation). It is used for lumbar and knee soreness, dizziness, impotence and premature ejaculation, spermatorrhea, dysuria, frequent urination, leakage, excessive menstruation, excessive sweating, etc. The medicine is warm, tonic and astringent. The drug is warm and astringent, so it should be used with caution for those who have fire-heat, dampness-heat and dysuria (unsmooth urination). It can be seen that the combination of the above two drugs can have the effect of nourishing the liver and kidney, and the adverse effects are not yet clear. Chinese medicine should be used under the guidance of a professional Chinese medicine practitioner, and should not be used blindly to avoid adverse reactions.