The preferred long-acting calcium antagonist CCB is followed by angiotensin-converting enzyme inhibitors (ACEI) or diuretics. Explanation: Because the cerebral circulation and other circulatory systems of the elderly need to be maintained normally at higher circulatory pressures, it takes several days to adapt to self-regulation of blood pressure lowering and therefore cannot be lowered rapidly. CCB can effectively lower blood pressure and reduce the occurrence of cardiovascular complications. medium- and long-acting CCB can be used and fast-acting capsules can be avoided.
Beta-blockers are not suitable for first-line use because their antihypertensive efficacy and reduction in the degree of complications are poor, and they can reduce cardiac output and increase peripheral vascular resistance, and can be used in combination with diuretics, which are more suitable for young hypertensive patients.