Side effects of Ginkgo biloba are rash, urticaria, drug fever and granulocytopenia, etc. Long-term and heavy use of the drug can lead to abnormal liver and kidney functions. Ginkgo Biloba Chinese patent medicine, composed of Ginkgo biloba extract, has the effects of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), opening the veins and relaxing the collaterals, and is used for the treatment of thoracic paralysis (tightness and pain in the chest) caused by blood stasis and stroke, with symptoms such as tightness in the chest, palpitations (rapid heartbeat, often accompanied by panic), strong tongue and speech, and hemiplegia (inability to move a limb at will on one side). Adverse effects of the drug are drowsiness, drowsiness, thirst, feeling of weakness, occasional rash, urticaria, drug fever and granulocytopenia, long-term use of large quantities of the drug will lead to abnormalities in liver and kidney function, pregnant women and people with heart failure should be used with caution. If there is a need for medication, it is recommended that it be used under the guidance of a professional physician, and not blindly self-medication.