Alpha-blocker medicines

Alpha-blocker medicines relax smooth muscle in the body. Smooth muscle controls the blood vessels, intestines, bladder and urinary tract, and other involuntary actions in the body.

Examples of alpha-blocker medicines include alfuzosin, doxazosin, silodosin, tamsulosin, and terazosin.

Alpha-blockers are also called alpha-adrenergic antagonists.

The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.