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.
Alpha-blockers can be used for many problems, including:
- Prostate problems. These medicines can relax the smooth muscle in the prostate and urethra, which lets urine flow out of the body more easily.
- Kidney stones. These medicines can relax the smooth muscle in the ureters (the tubes that move urine between the kidneys and the bladder) and make them wider, which can help a kidney stone pass more easily.
- High blood pressure. These medicines can relax the smooth muscle in the blood vessels and make them wider, which can help lower blood pressure.
Examples of alpha-blocker medicines include alfuzosin (Uroxatral), doxazosin (Cardura), silodosin (Rapaflo), tamsulosin (Flomax), and terazosin (Hytrin).
Side effects of alpha-blockers include:
Alpha-blockers are also called alpha-adrenergic antagonists.
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Specialist Medical Reviewer||J. Curtis Nickel, MD, FRCSC - Urology|
|Last Revised||March 5, 2012|