Last year the US FDA gave permission to change the labels on Cialis used for erectile dysfunction to warn consumers more directly of the possibility of hearing problems that could result from taking Cialis. It also informed users on what measures to take if this were to happen to them. The FDA asked manufacturers of these drugs to revise product labeling after a very small number of patients taking the PDE5 inhibitors reported sudden hearing loss, sometimes accompanied by ringing in the ears and dizziness. Read more »