Which one of the following PDE-5 drugs has the shortest half-life?
A. Sildenafil
B. Vardenafil
C. Tadalafil
D. Tamsulosin
Answer:A
Which one of the following PDE-5 drugs has the shortest half-life?
A. Sildenafil B. Vardenafil C. Tadalafil D. Tamsulosin