Diastolic blood pressure higher than 90mmHg belongs to the diagnostic range of hypertension, the first choice of antihypertensive drugs are diuretics, β-receptor antagonists, calcium channel blockers, angiotensin-converting enzyme inhibitors, angiotensin II receptor antagonists, etc., the choice of specific drugs need to be combined with the clinical conditions of the specialist to make a comprehensive judgment.
1. Diuretics: including thiazides, labeled diuretics and potassium-preserving diuretics, the common ones are furosemide and hydrochlorothiazide.
2. β-receptor antagonists: these drugs play a role in lowering blood pressure by inhibiting myocardial contractility and slowing down the ventricular rate, and the common ones are metoprolol, atenolol, and so on.
3. Calcium channel blockers: these drugs have a rapid onset of action, relatively strong antihypertensive efficacy and amplitude, with small individual differences in efficacy, and combined treatment with other types of antihypertensive drugs can significantly enhance the antihypertensive effect, the common ones are nifedipine, amlodipine and so on.
4. Angiotensin-converting enzyme inhibitors: especially suitable for hypertensive patients with heart failure, myocardial infarction, atrial fibrillation, proteinuria, diabetes mellitus, the common ones are captopril, enalapril and so on.
5. Angiotensin II receptor antagonist: the antihypertensive effect is slow, but lasting and smooth, common chlorosartan, valsartan and so on.
The use of antihypertensive drugs should follow the following four principles: initial treatment is usually a smaller effective therapeutic dose, gradually increase the dose according to the need, give preference to long-acting agents, combined use of drugs, individualization. It is recommended to buy and take them under the guidance of a doctor, do not blindly use drugs without authorization, so as not to delay the condition.