Lock Yang and Cistanchis have the same effect of tonifying kidney yang, benefiting essence and blood, moistening the intestines and relieving constipation. They are useful for kidney yang deficiency (lack of yang energy in the kidneys), deficiency of essence and blood, and constipation due to dryness of the intestines and constipation. Lock Yang and Cistanchis can be used for impotence and spermatorrhea, dizziness, deafness and weakness of limbs caused by deficiency of kidney yang; weakness and aching of waist and knees and difficulty in walking caused by deficiency of liver and kidney; constipation caused by dryness of intestines and constipation due to deficiency of yin and blood and insufficient fluids. Due to the warm and hot nature of lock yang and cistanchiakis and their laxative effect, it is not recommended for those with hot body and loose stools, and the adverse effects include dry mouth and mouth sores. If medication is needed, consult a traditional Chinese medicine practitioner before use and do not take medication on your own.