① Wuzi Yanzong Pill: It is mainly used to treat impotence, infertility, nocturnal emission, premature ejaculation, low back pain and enuresis caused by kidney deficiency and essence deficiency. ② Guifu Dihuang Pill: Indications are deficiency of kidney yang, soreness and coldness of waist and knees, edema of limbs, unfavorable or excessive urination, expectoration, asthma and cough, and thirst quenching. ③ Gui You Pill: It is mainly used to treat kidney-yang deficiency, life-threatening fire failure, soreness and coldness of waist and knees, mental fatigue, fear of cold, impotence and nocturnal emission, thin stool and frequent urination. ④ Zuogui Pill: Indications are deficiency of true yin, soreness of waist and knees, night sweats and nocturnal emission, mental fatigue and dry mouth. ⑤ Baizhi Dihuang Pill: Indications are yin deficiency and excessive fire, hot flashes and night sweats, dry mouth and sore throat, tinnitus and nocturnal emission, and short and red urine.