It has the effects of nourishing blood and yin, promoting fluid production and quenching thirst, and moistening the intestines to relieve dryness. It is primarily used to treat dizziness, blurred vision, tinnitus, palpitations, irritability, insomnia, soreness and weakness of the lower back and knees, premature graying of hair and beard, polydipsia and dry mouth, and constipation caused by insufficient yin and blood.