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alpha blockerAn agent that blocks activity at the alpha-adrenergic receptors, which are used as second-line antihypertensives. Alpha blockers provide symptomatic relief for benign prostate hypertrophy.
Doxazosin (Cardura), prazosin (Minipress), terazosin (Hytrin).
Dizziness, headache, weakness, nasal congestion, fluid retention, drowsiness.