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Alpha blocker: Wikis


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α blockers or (adrenergic) α-antagonists are pharmacological agents that act as antagonists of α adrenergic receptors (α-adrenoceptors).[1]



When the term "alpha blocker" is used without further qualification, it sometimes refers to α1 blockers, and sometimes refers to agents that act at both types of receptors.[citation needed]

Non-selective α-adrenergic blockers include:

The agents carvedilol and labetalol are both α- and β-blockers.


α blockers are used in the treatment of several conditions, such as Raynaud's disease, hypertension, and scleroderma.[2]


See also

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