1. Spleen and stomach weakness: Huangqi essence is used for invigorating qi and is suitable for various symptoms of spleen and stomach qi deficiency, such as fatigue, shortness of breath, dizziness, pale blood, easy bleeding, pale complexion, etc.

2. Patients with qi deficiency: The main function of Huangqijing is to replenish blood and qi, which is most suitable for people with qi deficiency such as muscle weakness and obesity.

3. Spontaneous sweating: Huangqi essence can improve spontaneous sweating when used together with ephedra and wheat flour.

4. People with low immunity: Huangqijing oral liquid can improve the phagocytic function of reticuloendothelial system, regulate cellular immunity and humoral immunity, thus helping to improve immune function.

5. Hypoxia: Huangqijing oral liquid can replenish blood and nourish blood, improve hypoxia caused by ischemia and obviously improve oxygen tolerance.

6. People with thick blood lipids: Astragalus extract helps to reduce the viscosity rate of platelets and prevent thrombosis. Suitable for patients with hyperlipidemia and cardiovascular and cerebrovascular diseases.

7. Patients with cardiac insufficiency: Huangqijing has a strong contraction effect on the heart, and the cardiotonic effect will be more obvious for patients with cardiac insufficiency caused by poisoning or fatigue. It shows that the cardiac contraction amplitude increases, the blood volume increases and the sexual function can be improved.

Please note that although Huangqijing is suitable for the above people, it is not suitable for everyone. The specific application needs to be determined according to personal physique and doctor's advice.