noun

• A drug taken to increase blood flow to the penis and improve erectile function.

  Also called sildenafil

  ‘Note that you should not take Viagra if you take glyceryl trinitrate.’

  More example sentences

  • ‘Drugs like Viagra, Cialis and Levitra are now the mass panacea for a flagging sex drive.’
  • ‘Valium and Viagra are trade names, while diazepam and sildenafil are generics.’
  • ‘What about a man who has a prescription for Viagra or some other erectile dysfunction drug?’
  • ‘It is the active ingredient in the anti-impotence drug known as Viagra.’