How do beta blocker tablets work with hypertension?

Beta blockers keep your heart rate low, usually below 70 beats a minute. This in turn keeps your blood pressure lower. Blood pressure is a combination of how much blood is pumped with each beat, how many times per minute it beats, and how much your blood vessels are constricted or dilated. This takes one of the variables sort of out of the mix. The trouble is that when your heart NEEDS to beat fast, like when you are exerting yourself, it won't, and you could pass out from not getting enough oxygenated blood to your brain. You will feel dizzy and lethargic when you begin taking them. You should always eat when taking them, because sometimes they will drop your blood sugar though it isn't common.