Editing Vardenafil (section)

==Adverse reactions==
The common, adverse drug reactions (side effects) are the same as with other PDE5 inhibitors. The frequent vardenafil-specific side-effect is [[nausea]]; the infrequent side effects are abdominal pain, back pain, [[photosensitivity]], abnormal vision, eye pain, facial [[edema]], [[hypotension]], palpitation, [[tachycardia]], [[arthralgia]], [[myalgia]], rash, itch, and [[priapism]].

One possibly serious, but rare, side effect with vardenafil is [[Myocardial infarction|heart attack]]. Also, in rare cases, vardenafil use may cause priapism, a very painful emergency condition that can cause impotence if left untreated.<ref name="MedScape PDE5">{{cite web|url=http://www.medscape.com/viewarticle/549253_6|title=Counseling Patients About Sexual Issues: Drug-Induced Priapism| vauthors = Stimmel GL, Gutierrez MA |access-date=December 6, 2010|publisher=Medscape}}</ref>

In October 2007, the [[Food and Drug Administration (United States)|U.S. Food and Drug Administration]] (FDA) announced that a warning about possible [[deafness]] (sudden hearing loss) would be added to the drug labels of vardenafil, and other PDE5 inhibitors.<ref name="FDA PDE5">{{cite web | url=https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/2007/ucm109012.htm| archive-url=https://web.archive.org/web/20090709212332/http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/2007/ucm109012.htm| url-status=dead| archive-date=July 9, 2009| title= FDA Announces Revisions to Labels for Cialis, Levitra and Viagra| date= October 18, 2007| publisher= [[Food and Drug Administration (United States)|Food and Drug Administration]] | access-date=August 6, 2009 }}</ref>