30
Participants
Start Date
November 30, 2012
Primary Completion Date
June 30, 2015
Study Completion Date
June 30, 2015
Sildenafil
50 mg/day for 4 weeks
tadalafil
10 mg/day for 4 weeks.
Placebo
Placebo 1 capsule per day for four weeks.
University of Texas Medical Branch, Galveston
The University of Texas Medical Branch, Galveston
OTHER