Cialis Generic(Tadalafil) is used for the treatment of enlarged prostate. It is also used to treat men who have both enlarged prostate and erectile dysfunction (male impotence) at the same time. Cialis is the first ED drug to be approved for treating benign prostatic hyperplasia (BPH). The active ingredient is Tadalafil, which is a PDE-I inhibitor that relaxes the muscles and helps to increase the blood flow to the penis. This drug helps to maintain an erection it long enough for sex, however the drug will not work without sexual stimulation. It does not increase libido and cure erectile dysfunction, however it temporarily relieves the symptoms. ©