After taking high blood pressure medication, how many days can be lowered depending on the type of drug, the time of onset of effect is also different, usually ranging from half an hour to several hours.
Antihypertensive drugs can be categorized into long-acting antihypertensive drugs and short-acting antihypertensive drugs according to the duration of the onset of action. Long-acting antihypertensive drugs work relatively slowly, usually in a few hours, and the effect of long-acting antihypertensive drugs lasts longer, up to about 24 hours.
Short-acting antihypertensive drugs have a relatively faster onset of action, and will generally have a blood pressure-lowering effect in about half an hour, but the duration of the effect of short-acting antihypertensive drugs is also relatively short, generally lasting only about 6 to 8 hours.
Because different antihypertensive drugs have different onset of action times, patients taking antihypertensive drugs should strictly follow the doctor’s instructions to take medication, and should not stop taking medication without authorization, so as to avoid fluctuations or sudden rises in blood pressure.