How fast does high blood pressure medication work?

A relative is on a low dose high blood medication and I was curious how fast it takes effect after she takes it? Is it a matter of minutes, hours, or days?

It depends on what kind of medication it is, and some people need to be on meds a couple weeks before the BP goes down. Generally, if it’s a beta blocker, it works pretty fast, reaching peak effectiveness in 24 hours.