alpha-blocker


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al·pha-block·er

(ăl′fə-blŏk′ər)
n.
A drug that blocks or counteracts the effects of epinephrine and other molecules that stimulate alpha-receptors, leading to various physiological reactions such as vasodilation and a decrease in blood pressure. Also called alpha-adrenergic antagonist, alpha-adrenergic blocker.

alpha-blocker

n
(Pharmacology) any of a class of drugs that prevent the stimulation of alpha adrenoceptors, a type of receptor in the sympathetic nervous system, by adrenaline and noradrenaline and that therefore cause widening of blood vessels: used in the treatment of high blood pressure and prostatic hyperplasia
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.alpha-blocker - any of various drugs that block alpha-adrenergic receptorsalpha-blocker - any of various drugs that block alpha-adrenergic receptors; used in treating benign prostatic hyperplasia; relaxes the muscles of the prostate and bladder
blocking agent, blocker - a class of drugs that inhibit (block) some biological process
Minipress, prazosin - antihypertensive drug (trade name Minipress)
Hytrin, terazosin - antihypertensive drug (trade name Hytrin) used to treat high blood pressure
References in periodicals archive ?
Safety and tolerability of solifenacin add-on therapy to alpha-blocker treated men with residual urgency and frequency.
found that discontinuing alpha-blocker therapy 10 days before surgery resulted in no favorable changes in anterior segment parameters, including pupil dilation, in their ultrasound biomicroscopic evaluation of 31 eyes of 19 patients.
Loop diuretics, thiazide diuretics, angiotensin receptor blocker, beta-blocker, and alpha-blocker were not associated with the risk of NOF.
Use of anti-hypertensive drugs such as selective beta blocker, alpha-blocker, CCB and/or other combinations more commonly used in non-diabetic than in diabetics.
The addition of desmopressin to alpha-blocker therapy is effective and well-tolerated in men with persistent nocturia
The concern is that the combination of alpha-blocker plus phosphodiesterase inhibitor will increase the risk of hypotension.
Along with type II 5-alpha-reductase inhibitors and anti-cholinergics, alpha-blocker medications are frequently used in urology for the treatment of LUTS and benign prostatic hyperplasia.
Alpha-blocker medications can relax the smooth muscles in the bladder neck and prostate to improve urine flow.
Labetalol is both a selective alpha-blocker and a nonselective beta-blocker that decreases systemic vascular resistance without changing maternal cardiac output.
Kissei obtained Japanese regulatory approval of URIEF (silodosin), an alpha-blocker for dysuria associated with BPH in 2006.