21
Participants
Start Date
December 31, 2007
Primary Completion Date
December 31, 2007
Study Completion Date
July 31, 2008
phosphodiesterase type 5 inhibitor
single oral administration of 20mg vardenafil
phosphodiesterase type 5 inhibitor
single oral administration of 100mg sildenafil
phosphodiesterase type 5 inhibitor
single oral administration of 200mg udenafil
Inje University
OTHER