People with spleen deficiency (loose stools) should be cautious of taking yuzhu, and those with phlegm-dampness and qi stagnation are forbidden to take yuzhu. It is sweet and slightly cold in nature, and belongs to the lung and stomach meridians. It has the effect of nourishing yin, moisturizing the lungs, generating fluids and quenching thirst, so it can be used for diseases such as deficiency of yin in the lungs and coughing due to dryness and heatiness. It is often used in combination with Radix Panax Ginseng, Mulberry Leaf and Ophiopogon, etc., to treat yin deficiency and lung dryness (deficiency of yin in the human body, resulting in dryness of the lungs not being nourished) with heat, such as haemoptysis, dry cough with little sputum, hoarseness, etc. It can also be used for stomach deficiency. This product can also be used for stomach yin deficiency (deficiency of yin fluid in the stomach), internal heat and thirst (internal heat accompanied by symptoms such as eating, drinking and urinating), dry throat and thirst, and is often used in conjunction with medicines to nourish yin and benefit the stomach, such as Radix Panax Ginseng and Ophiopogon, etc. It is also used to treat gastric yin deficiency, loss of appetite, and dry thirst and pharynx. This product should be taken with caution for people with spleen deficiency and loose stools, and is contraindicated for people with phlegm-dampness and stagnation of qi, and the adverse effects are not yet clear. The drug should be taken under the guidance of a doctor, not self-medication.