Noun alpha blocker has 1 sense
  1. alpha blocker, alpha-blocker, alpha-adrenergic blocker, alpha-adrenergic blocking agent - any of various drugs that block alpha-adrenergic receptors; used in treating benign prostatic hyperplasia; relaxes the muscles of the prostate and bladder
    --1 is a kind of blocker, blocking agent
    --1 has particulars: prazosin, Minipress; terazosin, Hytrin
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