Reinforcing the kidney and strengthen the body, indicated for soreness of lower back, weakness of feet, dizziness, tinnitus, dim eyesight, palpitation, impotence and seminal emission. Pathogenesis and Treating Principal: The prescription is fit for the Kidney Yang deficiency. The symptoms include soreness and weakness of the waist and knees, dizziness and tinnitus, blurring and palpitation, impotence and spermatorrhea and so on. Kidney Yang deficiency is also called Kidney Yang weakness. The pattern of Kidney Yang deficiency is often caused by congenital weakness, or qi vacuity caused by prolonged disease which impairs Kidney Yang, or indulgence in sex which will cause impairment of Kidney Yang gradually, or the old age and vacuity constitution which will cause deficiency of Kidney Yang, or overstrain which will cause Yang expels with the discharge of sweat. All the reason can cause the pattern of Kidney Yang deficiency. So the symptoms such as soreness and weakness of the waist and knees, dizziness and tinnitus, blurring and palptation, impotence and spermatorrhea and so on can occur. We treat it with the method of warming and reinforcing Kidney Yang, which will make Kidney Yang ample and all the symptoms will disappear. The prescription is fit for it.