The Efficacy and Functions of Astragalus and Ophiopogon

The functions and effects of Astragalus and Ophiopogon generally include replenishing Qi and nourishing Yin, enhancing defensive Qi and consoliding the exterior, strengthening the spleen and benefiting the stomach, moistening the lungs to relieve cough, and promoting body fluid production to relieve thirst.

1. Replenishing Qi and Nourishing Yin: Astragalus is sweet and warm in taste and property, making it a key herb for replenishing Qi, capable of boosting the body's overall energy. Ophiopogon, sweet and cold in nature, nourishes Yin and promotes body fluid production. When used together, these two herbs replenish both Qi and blood, and balance Yin and Yang. They are particularly effective for alleviating symptoms of Qi-Yin deficiency, such as fatigue, dry mouth and throat, and excessive sweating upon slight exertion.

2. Enhancing Defensive Qi and Consolidating the Exterior: Astragalus enhances defensive Qi and strengthens the muscular exterior, improving the body's ability to resist external pathogens. Ophiopogon nourishes Yin and ensures a sufficient supply of body fluids, preventing fluid loss due to Qi deficiency and weakened defensive function. Together, they effectively alleviate symptoms such as spontaneous sweating and night sweats, thereby enhancing the body's defense mechanisms.

3. Strengthening the Spleen and Benefiting the Stomach: Astragalus fortifies the spleen and boosts Qi, promoting the transformation and transportation functions of the spleen and stomach. Ophiopogon nourishes the Yin of the stomach, aiding digestion and food absorption. Working together, these herbs enhance the function of the spleen and stomach, alleviating symptoms caused by spleen-stomach weakness such as poor appetite, indigestion, and mild epigastric pain, thus promoting the absorption of nutrients.

4. Moistening the Lungs and Relieving Cough: Astragalus replenishes lung Qi, while Ophiopogon nourishes lung Yin. When combined, they restore the Qi and Yin of the lungs. This combination is particularly effective for treating chronic cough due to lung deficiency, dry cough with little phlegm, and symptoms such as shortness of breath and fatigue. It helps relieve cough and asthma by replenishing lung Qi and moistening lung Yin.

5. Promoting Body Fluid Production and Relieving Thirst: Astragalus boosts Qi, promoting the distribution of body fluids, while Ophiopogon nourishes Yin and directly replenishes deficient body fluids. Together, they effectively alleviate symptoms such as intense thirst, dry throat, and mouth dryness. This combination is especially suitable for individuals with diabetes (Xiao Ke disease) caused by Qi-Yin deficiency, helping to alleviate symptoms and stabilize the condition.

It should be noted that although the combination of Astragalus and Ophiopogon offers multiple benefits, its use should be appropriately guided by a physician based on individual constitution and medical condition to avoid adverse effects caused by improper usage.