Viagra (sildenafil citrate) is a medicine available by prescription used in patients diagnosed with erectile dysfunction. If you have a planned surgery tell your surgeon if you have recently taken Viagra as this may influence the choice of medicines you will be given during your operation. You should not get worried if you get any of the following mild side effects of Viagra as they will go away soon on their own: nosebleeds, heartburn, headache, facial flushing, muscle aches, diarrhea, insomnia, changes in color vision (trouble telling the difference between green and blue), and light sensitivity. You can also experience some of the serious side effects of Viagra although these are quire rare. The following symptoms should be reported to your health care provider as soon as possible: chest pain, blurred vision, dizziness, fainting, rash, loss of vision or hearing, painful erection, lightheadedness and shortness of breath.
Brand names: Viagra, Revatio
Generic names: Sildenafil citrate
