Can patients with Yin deficiency of the spleen and stomach use Ophiopogon japonicus (Mai Dong)?
Whether patients with spleen and stomach yin deficiency can use Ophiopogon japonicus (McDoor) mainly depends on the patient's specific constitution. If the patient has spleen and stomach yin deficiency with fire effervescence, its use may generally be followed under medical advice. However, if the patient has significant spleen and stomach yin deficiency combined with marked cold deficiency, its use is not recommended. Detailed analysis is as follows:

Ophiopogon japonicus is a traditional Chinese medicine that has the function of clearing the heart, moistening the lungs, nourishing the stomach, and promoting the production of body fluids. It is suitable for relieving symptoms such as thirst, dry throat, and a burning sensation in the stomach caused by insufficient stomach yin. In cases of spleen and stomach yin deficiency with fire effervescence, Ophiopogon japonicus can help nourish the spleen yin and effectively alleviate symptoms such as dry mouth and throat and sore throat. Therefore, patients with spleen and stomach yin deficiency can appropriately use Ophiopogon japonicus for regulation under the guidance of a physician.
Although Ophiopogon japonicus benefits yin-deficient constitutions, it is not suitable for patients who have spleen and stomach cold deficiency, characterized mainly by cold intolerance, cold limbs, abdominal pain, diarrhea, and other symptoms. Ophiopogon japonicus is of cold nature, and excessive use may further damage the spleen and stomach yang qi, thereby worsening symptoms of spleen and stomach cold deficiency. It is recommended to use it rationally under the guidance of a TCM physician to achieve optimal therapeutic effects.
During the period of treatment with traditional Chinese medicine, attention should also be paid to dietary regulation. It is recommended to avoid consuming excessively cold or greasy foods to promote recovery.