From Juan Pablo Ruffino. The FDA Safety Information and Adverse Event Reporting Program .FDA informed healthcare professionals of reports of sudden decreases orloss of hearing following the use of PDE5 inhibitors, Viagra, Levitra,Cialis for the treatment of erectile dysfunction and Revatio for thetreatment of pulmonary arterial hypertension.  In some cases, the suddenhearing loss was accompanied by tinnitus and dizziness. [ Read from original site ]. See also in Boston.com (Oct.18, 2007)FDA to warn Viagra users of hearing loss.