#blocking_agent__blocker  a class of drugs that inhibit (block) some biological process
  supertype:  medicament__medicine__medication__medicinal_drug__medicinaldrug  something that treats or prevents or alleviates the symptoms of disease
  subtype:  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
     subtype:  prazosin__Minipress  antihypertensive drug (trade name Minipress)
     subtype:  terazosin__Hytrin  antihypertensive drug (trade name Hytrin) used to treat high blood pressure
  subtype:  beta_blocker__beta-adrenergic_blocker__beta-adrenergic_blocking_agent  any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system
     subtype:  acebutolol__Sectral  an oral beta blocker (trade name Sectral) used in treating hypertension
     subtype:  atenolol__Tenormin  an oral beta blocker (trade name Tenormin) used in treating hypertension and angina; has adverse side effects (depression and exacerbation of congestive heart failure etc.)
     subtype:  carvedilol  beta blocker that can reduce the progression of heart failure in individuals whose disease is not advanced
     subtype:  esmolol__Brevibloc  intravenous beta blocker (trade name Brevibloc) that acts for only a short time; used primarily for cardiac arrhythmias
     subtype:  metoprolol__Lopressor  beta blocker (trade name Lopressor) used in treating hypertension and angina and arrhythmia and acute myocardial infarction; has adverse side effects (depression and exacerbation of congestive heart failure etc.)
     subtype:  nadolol__Corgard  a beta-adrenergic blocking agent (trade name Corgard) that is used to treat hypertension and angina
     subtype:  pindolol__Visken  an oral beta blocker (trade name Visken) used in treating hypertension
     subtype:  propanolol__Inderal  the first beta blocker (trade name Inderal) used in treating hypertension and angina pectoris and essential tremor
     subtype:  timolol__Blocadren  a beta blocker (trade name Blocadren) administered after heart attacks
  subtype:  labetalol_hydrochloride__labetalolhydrochloride__labetalol__Trandate__Normodyne  antihypertensive drug (trade names Trandate and Normodyne) that blocks alpha and beta-adrenergic receptors of the sympathetic nervous system (leading to a decrease in blood pressure)
  subtype:  neuromuscular_blocking_agent  a substance that interferes with the neural transmission between motor neurons and skeletal muscles
     subtype:  gallamine__Flaxedil  neuromuscular blocking agent (trade name Flaxedil) used as a muscle relaxant in the administration of anesthesia
     subtype:  tubocurarine__curare  a toxic alkaloid found in certain tropical South American trees that is a powerful relaxant for striated muscles; used by South American indians as an arrow poison; "curare acts by blocking cholinergic transmission at the myoneural junction"

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