blocker

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Related to a-blocker: Ad blocker

blocker

 [blok´er]
something that blocks or obstructs a passage or activity; see also antagonist and blocking agent.
β-blocker (beta-blocker) beta-adrenergic blocking agent.
calcium channel blocker calcium channel blocking agent.
potassium channel blocker potassium channel blocking agent.
sodium channel blocker sodium channel blocking agent.

block·er

(blok'er),
An instrument used to obstruct a passage.

blocker

A popular term for anything which physically (e.g., a bed blocker, see there) or pharmacologically (e.g., a beta-blocker) impedes a process or activity.

block·er

(blok'ĕr)
1. An instrument used to obstruct a passage.
References in periodicals archive ?
Starting from 1994, the approach of combination therapy with a-blockers and antimuscarinics in men with bladder outlet obstruction and overactive bladder (OAB) symptoms has become increasingly accepted.[sup][13] The earliest report by Athanasopoulos et al .[sup][14] set off the growing interest of antimuscarinics use in men with LUTS.
Another study in 2010 assessed the effects of a-blockers on LUTS by IPSS.
These findings are in contrast with our results that a-blockers are better than phytotherapy.
Other studies, including a meta-analysis done for the guidelines, suggest a-blockers are more effective than calcium channel blockers.
The study involves 625 North American clinical sites at which 42,448 high-risk hypertensive patients have been randomized to chlorthalidone, the calcium channel blocker amlodipine, the a-blocker doxazosin, or the ACE inhibitor lisinopril.
The rate of CHF in the diuretic group was 1% per year and twice that in the a-blocker group.