Side effects of Ginkgo biloba drops include nausea, dry mouth, abdominal discomfort, and rash, but specific side effects cannot be generalized due to individual variability. The main ingredient of Ginkgo biloba drops is ginkgo biloba extract, which belongs to Chinese patent medicine. It has the effect of activating blood circulation, removing blood stasis and clearing collaterals, and can be used to treat chest paralysis, heart pain, stroke, hemiplegia and other conditions caused by blood stasis and collaterals obstruction. Some patients may experience side effects such as nausea, dry mouth, abdominal discomfort, rash, abdominal pain, excessive stomach acid, dizziness, headache, itchy skin, chest tightness, palpitation and so on during taking Ginkgo biloba drops. Therefore, the drug should be taken with caution or contraindicated for those who are allergic to the ingredients of Ginkgo biloba drops, those with heart failure, pregnant women, and patients on antiplatelet therapy. During the period of taking Ginkgo biloba pills, patients need to ensure sufficient rest time, do not overwork. Maintain a positive and optimistic mindset, do not be overly emotional. Diet, patients need to eat more fresh fruits and vegetables, less spicy stimulating food. Drugs should be used under the guidance of a professional physician.