What are the differences between Zhibai Dihuang Pill and Liuwei Dihuang Pill?

Zhibai Dihuang Pill and Liuwei Dihuang Pill are different. Liuwei Dihuang Pill consists of rehmannia root, dogwood pulp, yam, alisma rhizome, cortex moutan and Poria cocos. Zhibai Dihuang Pill is based on the above and adds anemarrhena rhizome and phellodendron bark, which can play the role of nourishing yin from the pharmaceutical composition. However, Zhibai Dihuang Pill has a greater effect on clearing heat, so for some patients, such as yin deficiency is more severe, dry mouth, irritability and night sweats are particularly obvious, Zhibai Dihuang Pill should be used, the method of taking medicine is the same, it can be taken before and after meals.