The optimal dosage of Radix Panax Ginseng and Horny Goat Weed depends on the condition of the patient and other factors. The Pharmacopoeia recommends that Radix Panax Ginseng should be 9-30g and Horny Goat Weed should be 6-10g, and should be used in accordance with the doctor’s prescription. The optimal dosage of Radix Panax Ginseng and Horny Goat Weed should be decided according to the degree of illness, individual’s physique, and the efficacy of the medicine after use, and should not be generalized. Pharmacopoeia recommends Epimedium 6-10g, Radix et Rhizoma Ginseng 9-30g, the specific use of the drug should be under the guidance of a doctor. Radix Panax Ginseng has the effect of strengthening the spleen and benefiting the vital energy, moisturizing the lungs and promoting the production of body fluid. It is used for spleen deficiency and body fatigue, lung dryness and dry cough, weakness after illness, deficiency of qi and yin, thirst and spontaneous sweating (involuntary sweating during the daytime, aggravated by sweating with slight movement) and other diseases. Evil solid evidence (feeling the disease caused by excessive evil) is prohibited to take tai ginseng, adverse effects are not clear. Epimedium has the effects of tonifying kidney yang, dispelling wind-dampness, and strengthening muscles and bones. It is used in treating kidney yang deficiency, spermatorrhea and impotence, rheumatism and paralysis, impotence and weakness of muscles and bones, numbness and contracture. Epimedium is contraindicated in people with yin deficiency and fire exuberance (deficiency of yin essence in the body and hyperactivity of deficiency fire). Adverse drug reactions are not clear. When Tai Zi Shen and Epimedium are used for the treatment of diseases, they should be used under the guidance of a doctor to identify and match the evidence.