There is no such thing as preferred proprietary Chinese medicine for stomach yin deficiency. Stomach yin deficiency can be treated under the guidance of a Chinese medicine practitioner according to the needs of the condition by choosing proprietary Chinese medicines such as yin deficiency stomach pain capsule and morodan. 1. Yin deficiency stomach pain capsule is a kind of proprietary Chinese medicine, composed of white peony, dendrobium, maitake and other Chinese medicinal ingredients, has the effect of nourishing yin and benefiting the stomach (replenish yin fluid, enhance the function of the stomach and internal organs), slowing down the middle and relieving the pain, and can be used to treat the hidden pain in the stomach caused by the deficiency of stomach yin, dry mouth, nausea (no appetite, reduced food intake) and other diseases. Yin deficiency stomach pain capsule adverse reactions, contraindications are not yet clear. Avoid spicy and stimulating food during the medication, allergy to the product is prohibited, allergic individuals should be cautious of using Yinxu stomach pain capsule. 2. Morodan is a proprietary Chinese medicine, composed of XuanShen, YinChen, PuHuang and other Chinese medicinal ingredients, has the effect of harmonizing the stomach and lowering the rebellious (harmonizing the stomach qi, so that the upward reversal of qi down), strengthening the spleen and eliminating flatulence, and clearing up the collaterals and fixing the pain, and can be used to treat atrophic gastritis, with symptoms such as gastric pain, distension, flatulence, belching (hiccups), heartburn, and so on. Morodan adverse reactions, contraindications are not yet clear. Avoid eating stimulating food during the medication, and pregnant women should be cautious of using the drug. In addition, Chinese medicines such as Nourishing Stomach Shu Granules can be chosen to treat stomach yin deficiency. If you need to use the above medications, you should be guided by a Chinese medicine practitioner under the guidance of the evidence, not to buy their own medication, so as to avoid delaying the condition of the medicine is not the right evidence.