A single blood pressure 170 is not enough to make a definitive diagnosis of hypertension, and medication should be given only after a definitive diagnosis has been made. Commonly used antihypertensive drugs include diuretics, β-receptor antagonists, calcium channel antagonists and ACEI / ARB. 1. Diuretics: suitable for simple senile hypertension, salt-sensitive hypertension, common drugs such as furosemide. Pay attention to the adverse effects such as low potassium during the use of drugs, combined with gout and other prohibited. 2. β-receptor antagonist: suitable for patients with angina pectoris, common drugs such as metoprolol. Pay attention to the adverse reactions such as bradycardia during the use of drugs, combined with conduction block is prohibited. 3. Calcium ion antagonist: suitable for patients with angina pectoris, common drugs such as amlodipine. During the use of drugs, pay attention to the presence of facial flushing and other adverse reactions, heart failure patients should be used with caution. 4. ACEI/ARB: for patients with proteinuria, common drugs such as captopril or candesartan. During the use of medication, pay attention to the presence of angioedema and other adverse reactions, bilateral renal artery stenosis is prohibited. If you have elevated blood pressure in daily life, it is recommended to go to a regular hospital for standardized diagnosis and treatment, after a clear diagnosis of hypertension, use medication under the guidance of the doctor, and avoid unauthorized use of medication.