Liuwei Dihuang Pill mainly contains many Chinese herbal medicines, such as Rehmannia glutinosa and Cornus officinalis, so it can nourish liver and kidney, and can improve the loss of kidney deficiency in men, weakness of waist and knees, impotence and premature ejaculation caused by kidney deficiency. In addition, it can enhance men's kidney function, further quench their thirst, improve men's self-confidence and eliminate physical fatigue, and it can also improve people's physical immunity.