1, Codonopsis pilosula and Astragalus membranaceus all belong to the tonics. Codonopsis pilosula has the effects of invigorating the middle warmer and invigorating qi, nourishing blood and promoting fluid production, while Astragalus membranaceus can tonify yang, strengthen exterior, support toxin and promote granulation, and induce diuresis to reduce swelling. It can be used to treat pale face, fatigue, shortness of breath, lack of breath, low voice, no appetite and loose stool caused by qi deficiency syndrome. The combination of the two herbs is mainly used to treat deficiency syndrome, especially patients with qi deficiency syndrome. Patients with excess syndrome, hypertension and cold and fever are not recommended to drink Codonopsis pilosula and Astragalus membranaceus.

2. Evidence: Patients with pathogenic cold or heat in the body, or pathological products such as phlegm-dampness, damp-heat and blood stasis in the body belong to empirical patients. Patients with excess syndrome should avoid using Radix Astragali and Radix Codonopsis to make tea. The qi-invigorating effects of Radix Codonopsis and Radix Astragali will contribute to diseases in the body, thus aggravating symptoms or bringing more adverse effects.

3, hypertension: For patients with hypertension, if the blood pressure is not well controlled after taking antihypertensive drugs, it is not suitable to drink Dangshen Huangqi tea at this time. Codonopsis pilosula and Astragalus membranaceus can raise blood pressure to some extent, which may affect the blood pressure of these patients.

4, cold and fever: If it is exogenous cold or wind-heat evil, causing a cold and fever, patients are not suitable for drinking tea soaked in Dangshen and Astragalus. Codonopsis pilosula and Astragalus membranaceus have the function of invigorating qi, which may encourage internal and external evils, thus making it difficult to recover from a cold and fever.

5. In addition, sick children, pregnant women, menstruating women and people who are allergic to traditional Chinese medicine are not suitable for drinking Dangshen Huangqi tea. If you want to drink Dangshen Huangqi tea, it is recommended to choose under the guidance of doctors' syndrome differentiation, and not to take it yourself, so as not to bring adverse effects to your health.