Number : 24
Viagra (Sildenafil) is a PDE5 inhibitor used to treat erectile dysfunction. It works by increasing blood flow to the penis during sexual arousal, helping men achieve and maintain an erection.
Number : 14
Cialis (Tadalafil) is a PDE5 inhibitor used to treat erectile dysfunction. It works by increasing blood flow to specific areas of the body, particularly during sexual arousal.