If dizziness and nausea occur after taking medication, the following measures should be taken: 1. stop the work in hand and rest in bed to prevent falls. 2. if the symptoms occur within half an hour of taking the medication, the throat can be stimulated to promote vomiting and prevent the continued absorption of unabsorbed medication. 3. drink more water, especially sugar water or honey water to promote drug metabolism through osmotic diuresis. 4. 4.You can drink lactulose to promote drug metabolism through bowel movement. 5.If it is antihypertensive and hypoglycemic drugs, you can monitor blood pressure and blood sugar to understand the situation. 6.You need to find the prescribing doctor to understand whether it is a normal reaction. 7.If the symptoms persist without relief, you need to exclude other causes of dizziness, such as fever, coronary heart disease, cerebrovascular disease, etc. The usual method and dose of medication must be taken under the guidance of a doctor to prevent discomfort.