What medicine is best for kidney yin deficiency?

Kidney yin deficiency generally shows symptoms of yin deficiency and fire excess, patients will show hot flashes, night sweats, hand and foot heat, irritability; men will show hyperlibido, frequent nocturnal emission; women may show menstrual abnormalities. Kidney yin deficiency patients generally take the following drugs: First, Liuwei Dihuang Pill. Liuwei Dihuang Pill can nourish liver and kidney, is a commonly used drug for kidney yin patients; Second, Zuo Gui Pill. Zuo Gui Pill simply nourishes kidney yin; 3. If the patient has kidney deficiency and high fire, he can take Zhibai Dihuang Pills.