Patients with hypertension who have a sudden decrease in blood pressure accompanied by dizziness should first consider whether they are taking an overdose of antihypertensive medication or taking the incorrect type of antihypertensive medication, and should make adjustments to their medication, such as stopping certain medications when they were previously taking a combination of antihypertensive medications, such as calcium antagonists and ACEI drugs, to observe the patient. If the patient’s blood pressure is normal and there are no significant dizziness symptoms, the antihypertensive drug can be changed from more than two to one. In addition, if the patient previously took a large dose of antihypertensive drugs, you can also adjust the dose of drugs on the small side, and observe whether the patient’s symptoms improve, through the above drug adjustment and reduction, if it can be significantly effective treatment, no need to go to the hospital for further treatment. If dizziness and weakness are still evident after adjustment, it is necessary to check whether the above-mentioned condition is caused by impaired function of target organs, such as cerebrovascular, cardiovascular or renal function.