Blood Settlement Capsules is a kind of Chinese patent medicine, which mainly activates blood circulation and transforms blood stasis, and opens up blood vessels and meridians, so it is mainly used for diseases of narrowing and occlusion of heart and brain vessels, especially for symptoms such as chest tightness, shortness of breath and palpitations, and also plays a certain role in the treatment of ischemic stroke. Because of the effect of activating blood circulation and removing blood stasis, there is a certain risk of bleeding. Also side effects of digestive tract such as nausea, vomiting, abdominal pain, etc. are seen clinically. Also some patients may experience neurological symptoms such as dizziness and headache. Some patients also experience allergic reactions, such as itching of the skin in mild cases, and in severe cases there have been cases of infectious shock. Other patients may experience skin changes such as rash. Therefore the drug is taken with close attention to its side effects, while long-term use is not recommended.