(High Blood Pressure)
Blood Pressure Medications
Alpha-adrenergic Blocking Drugs (Alpha Blockers)
Alpha blockers block the nerve receptors called alpha receptors. Alpha receptors normally promote constriction of the arterioles. Blocking constriction promotes dilation of vessels and lowers blood pressure, as well as reduces the work of the heart in some situations. These drugs also inhibit the production and the effect of adrenaline, a potent stimulator released by the body in response to stress. Too much adrenaline can overexcite the circulatory system and cause blood pressure to climb.
Examples of alpha blockers are: Cardura, Minipress, etc.
Side effects of alpha blockers
According to results from an NIH clinical study, an alpha blocker may not be the best choice for initial treatment for uncomplicated high blood pressure.