What medication acts by increasing the action of nitric oxide as a treatment for erectile dysfunction?
A)Viagra
B)marijuana
C)Prozac
D)naloxone

Question

Quizplus · Accepted Answer

Viagra (generic name: sildenafil) works by inhibiting the enzyme phosphodiesterase type 5 (PDE5) which breaks down nitric oxide, a chemical that relaxes the smooth muscle in the penis and promotes blood flow, leading to an erection. By inhibiting PDE5, Viagra increases the levels of nitric oxide, thus improving blood flow and enabling an erection.

What Medication Acts by Increasing the Action of Nitric Oxide