Cistanches are used to replenish kidney yang, benefit essence and blood, and moisten the bowels to relieve constipation. Cistanches are sweet, salty and warm in flavor, and belong to the kidney and large intestine meridians. It can improve symptoms such as lumbar and knee soreness (a feeling of soreness and weakness in the waist and knees), mental depression, fear of cold and fear of cold caused by deficiency of kidney yang (lack of yang energy in the kidneys), as well as relieving intestinal dryness and constipation. Cistanchis is recommended to be treated under the principle of doctor’s diagnosis and treatment, avoiding private medication, and discontinuing the use of the drug in case of discomfort during the period of use. It should not be used by people who are allergic to Cistanchis, and should not be used by people who suffer from yin deficiency (deficiency of yin and essence in the body, resulting in hyperactivity of deficiency fire), or people who suffer from loose stools. The use of medication should be in accordance with medical advice.