#alpha_blocker__alphablocker__alpha-blocker__alphablocker__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
  supertype:  blocking_agent__blocker  a class of drugs that inhibit (block) some biological process
  subtype:  prazosin__Minipress  antihypertensive drug (trade name Minipress)
  subtype:  terazosin__Hytrin  antihypertensive drug (trade name Hytrin) used to treat high blood pressure

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