#virility_drug__anit-impotence_drug  drug to treat impotence attributable to erectile dysfunction
  supertype:  #drug  a substance that is used as a medicine or narcotic
  subtype:  #phentolamine__Vasomax  a virility drug (trade name Vasomax) to treat erectile dysfunction in men
  subtype:  #sildenafil__Viagra  virility drug (trade name Viagra) used to treat erectile dysfunction in men

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