American ginseng, sweet and bitter in taste, cool in nature, is used to Nourish Qi, nourish yin, clear away fire, promote body fluid and quench thirst. It is used for deficiency of Qi and Yin, internal heat, expectoration, phlegm and blood, deficiency of heat and tiredness, dry mouth and dry throat, etc. It is most suitable for cough and asthma with deficiency of lung yin and throat thirst with gastric dryness and fluid injury.
The drug properties of American ginseng are similar to that of ginseng, but they are quite different. Ginseng promotes Qi and helps fire, and American ginseng nourishes Yin and reduces fire. Therefore, if the body has fever, such as dry mouth and fidgety, hot hands, red face, loss of appetite, and the body is often tired and weak, taking American ginseng can achieve the purpose of recuperation. Modern research shows that American ginseng has the functions of protecting liver, strengthening immunity, regulating insulin secretion and helping digestion. Therefore, patients with liver disease, tumor disease, diabetes, chronic gastric disease and gastrointestinal weakness can take it. The following should be noted when taking American ginseng:
1. Panax quinquefolium is cold in nature. People who have symptoms of Yang deficiency such as cold hands and feet, fear of cold, sweating easily, loose stool, clear and long urination, bland and tasteless mouth, poor appetite, weak tongue, white and moist fur, weak pulse, etc. should not take it if their stomach is cold and wet and their external feelings are not cured.
2. The main effect of American ginseng is to Nourish Qi and Yin. According to the principle of “no deficiency, no deficiency”, if there is no discomfort in the body, it is not suitable to take American ginseng frequently. In addition, the dosage of Panax quinquefolium should be 3-6 g per day. If you take too much, you may have side effects such as hyperactivity, restlessness, anxiety, insomnia and even mental disorder.
3. The climate of American ginseng is dry from late spring to early autumn because it is not good for cold and dampness.