Also known as Forsythia, Ice Cream Flower is a drug that contains various components of cardiac glycosides and non-cardiac glycosides. It has cardiotonic, diuretic, sedative and heart rate slowing effects, so it can be used to treat acute and chronic cardiac insufficiency, atrial fibrillation, cardiogenic edema. In the process of application, as with digitalis drugs, it should not be overdosed. If overdose will cause nausea, vomiting, blurred vision, panic and other toxic symptoms. In the process of clinical application, most of the traditional Chinese medicine or western pharmaceutical preparations of ice-cream flowers, and must be taken in accordance with the instructions of the dosage, otherwise it will cause the poisoning of the drug, resulting in the adverse reactions mentioned above.