The main function of Blood Certon Drops is to invigorate blood circulation and remove blood stasis, open the blood vessels and activate the blood circulation. It has certain effects of antiplatelet aggregation and increasing cerebral blood flow, so it is mainly a proprietary Chinese medicine used to dilate cerebral blood vessels. The main ingredient of Hematocrit drops is Panax ginseng total saponin, which is commonly used clinically for hemiplegia, precordial discomfort and cerebrovascular sequelae. Some patients will experience urticarial allergic reactions on the skin of the whole body when using it. Rarely, hypothermia will occur, especially patients can experience dizziness and headache after using the drug, some patients will experience chest tightness and panic, and severe renal failure and even anaphylactic shock may occur. Although it is an over-the-counter drug, it is not recommended for elderly patients as a routine drug for daily blood vessel ventilation, and must be used according to medical advice to avoid adverse consequences, while pregnant women are advised to use it with caution.