To report any serious adverse events associated with the use of this drug, please contact the FDA MedWatch program using the contact information at the bottom of this page.
- Regulatory History of Verdenafil from Drugs@FDA
- Information for Healthcare Professionals: Sildenafil (marketed as Viagra and Revatio), Vardenafil (marketed as Levitra), Tadalafil (marketed as Cialis)
- FDA Announces Revisions to Labels for Cialis, Levitra and Viagra
- Questions and Answers about Viagra, Levitra, Cialis, and Revatio: Possible Sudden Hearing Loss