Vardenafil in Greenlight(TM) Laser Surgery of Benign Prostate Hypertrophy

One tablet vardenafil 10 mg with a glass of water the evening before ablation of prostate; the second dose (vardenafil 20 mg) with a glass of water approximately one hour before Greenlight(TM) laser ablation of prostate commenced.

One placebo tablet with a glass of water the evening before ablation of prostate; the second placebo dose with a glass of water approximately one hour before Greenlight(TM) laser ablation of prostate commenced.