metoprolol succinate + doxazosin

Metoprolol succinate + doxazosin is a combination of two antihypertensive agents used together to manage high blood pressure. Metoprolol succinate is a selective beta-1 adrenergic receptor antagonist (beta-blocker) that primarily affects the heart, reducing heart rate and cardiac output, thereby lowering blood pressure and decreasing myocardial oxygen demand. Doxazosin is an alpha-1 adrenergic receptor antagonist that works by relaxing vascular smooth muscle, leading to vasodilation and reduced peripheral vascular resistance. This combination may be used in patients who require more than one agent for adequate blood pressure control but should be monitored closely due to the risk of additive hypotensive effects such as dizziness or fainting[1][2][3][4][5]. Metoprolol was developed by US Pharmaceutical Holdings I and approved in 1978[4]. Doxazosin is marketed under the brand name Cardura.

Brand names

Toprol XLKapspargo SprinkleCardura

Other names

metoprololmetoprolol ERmetoprolol extended-release