The therapeutic effects of Lianhua Qingdian Capsule include promoting the lungs to expel heat, clearing the plague and detoxifying the toxin (removing the plague, heat, and poisonous evils), and it is mainly used for treating the evidence of heat and poison attacking the lungs caused by influenza. Lianhua Qingdian Capsule contains honeysuckle, fritillary, forsythia, gypsum, bitter almonds, ephedra, root of bluebells, fritillary, rhubarb, mint, rhodiola rosea, etc. It can treat influenza due to heat and toxicity attacking the lungs, and the patient manifests fever or high fever, malignant chills, muscle pains, nasal congestion and runny nose, cough, headache, dry throat and sore throat, with a reddish tongue, and yellowish or yellowish greasy moss. Contraindicated for those who are allergic to this product and its ingredients. It is not suitable for people with wind-cold flu. Some patients have been seen gastrointestinal adverse reactions such as nausea, vomiting, abdominal pain, diarrhea, abdominal distension, regurgitation, as well as rash, itching, dry mouth, dizziness and so on after taking Lianhua Qingdian Capsule. Avoid smoking, alcohol and spicy, cold and greasy food. It is not advisable to take tonic Chinese medicine at the same time during the medication. Use with caution in patients with high blood pressure and heart disease. People with liver disease, diabetes mellitus, kidney disease and other serious chronic diseases should take it under the guidance of a physician. Patients with a fever of more than 38.5 ℃ should go to the hospital and take the medicine properly under the guidance of a doctor. The use of drugs should be under the guidance of a doctor.