There is no such thing as the best proprietary Chinese medicine for liver and kidney double tonic. Liver and kidney double tonic is mostly due to the treatment of liver and kidney yin deficiency (deficiency of yin in the liver and kidneys) conditions. Commonly used proprietary Chinese medicines include Liu Wei Di Huang Wan and Qi Ju Di Huang Wan. Liu Wei Di Huang Wan has the effect of nourishing yin and tonifying the kidneys, and is used to treat dizziness and tinnitus, lumbar and knee soreness (a feeling of soreness and weakness in the lumbar area and knees), bone vapor and tidal fever (a burst of heat, feeling that the heat is penetrating from inside the bones to the outside), spermatorrhea, and night sweating (abnormal sweating after going to sleep, and sweating stops after waking up). Qi Ju Di Huang Wan has the effect of nourishing the kidney and liver and is used to treat dizziness, tinnitus, astigmatism, photophobia and blurred vision associated with yin deficiency of the liver and kidney. It is recommended that patients who need to nourish the liver and kidney should consult a doctor in time and use medication under the doctor’s guidance.