Cialis is a drug prescribed to men who experience sexual issues (impotence or erectile dysfunction-ED). Cialis helps men achieve and maintain an erection by boosting blood flow to the penis when used properly. To alleviate the symptoms of an enlarged prostate, Cialis is also prescribed (benign prostatic hyperplasia-BPH). If you're experiencing difficulties starting the flow of pee, a weak stream, or urgent need to urinate regularly or frequently due...