title: Ventricular tachycardia after administration of sildenafil citrate: a case report.
abstract: BACKGROUND
  It has not previously been reported that sildenafil citrate causes malignant arrhythmias in humans.
  
  
  METHODS
  A 41-year-old man developed sustained ventricular tachycardia following sildenafil citrate administration.
  
  
  CONCLUSIONS
  It cannot be dismissed that this patient experienced ventricular tachycardia as an adverse effect of sildenafil citrate administration.
authors: Department of Cardiology, Center for Cardiovascular Research, Aalborg Hospital, Aarhus University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark. jgr1@dadlnet.dk.
authors: Jeppe G
authors: JG
authors: Rasmussen
authors: Egon
authors: E
authors: Toft
authors: Ole
authors: O
authors: Frøbert
references: Circulation. 2000 Jul 18;102(3):275-7
references: 10899088
references: N Engl J Med. 1998 May 14;338(20):1397-404
references: 9580646
references: Am J Physiol Heart Circ Physiol. 2002 May;282(5):H1787-92
references: 11959644