The dosage of Ginkgo biloba is one tablet a day, which is more effective in recognizing the symptoms. Whether it is effective or not is related to the condition and other factors, and it is difficult to generalize. Ginkgo biloba has the efficacy of activating blood circulation, removing blood stasis and clearing collaterals, and is suitable for stroke, hemiplegia (inability to move one side of the limb), chest paralysis (stuffy pain in the chest), cardiac pain, strong tongue and speech (tongue stretching is unfavorable, and speech is not clear) caused by stasis and blood circulation, as well as coronary heart disease and cerebral infarction in the presence of the above mentioned symptoms of stable angina pectoris. Adverse reactions to Ginkgo Biloba are not known. People who are allergic to this drug are prohibited from using it, and people with heart failure or pregnant women need to use it with caution. Patients who are not feeling well are advised to consult a doctor in time to find out the cause of the disease, follow the doctor’s instructions to use the drug, and not to take it indiscriminately.