Chinese patent medicines for strengthening the spleen and dispelling phlegm and dampness include Er Chen Pills, which is effective in regulating qi and harmonizing the stomach, drying dampness and resolving phlegm (removing phlegm in the body with dampness-drying medicines). Er Chen Pill is mainly composed of Poria, Chen Pi, Licorice, Semen Xie and other Chinese medicines, which can regulate qi and harmonize the stomach, dry dampness and resolve phlegm, and can be clinically used in the treatment of chest and epigastric distension and congestion, cough and phlegm, nausea and vomiting, and other symptoms of disease. In the formula, Pinellia dries dampness and resolves phlegm, lowers the rebelliousness and harmonizes the stomach, Pericarpium Citri Reticulatae regulates qi and promotes stagnation, dries dampness and resolves phlegm, Poria exudes dampness and strengthens the spleen, and Glycyrrhiza glabra harmonizes all the medicines. The adverse effects of Er Chen Pills are not clear, avoid eating greasy food, spicy, allergic to the ingredients of the drug is prohibited, allergies should be used with caution. Er Chen Pills need to be used under the guidance of a traditional Chinese medicine practitioner, avoid self-medication to avoid damage.