When sexually aroused, your body releases nitric oxide, which stimulates the production of cGMP, a chemical that relaxes smooth muscle and widens the blood vessels in the penis. This process increases blood flow, leading to an erection. Vidalista 20 mg blocks the enzyme PDE5, which breaks down cGMP, allowing for prolonged and enhanced erections during sexual activity.Vidalista 20 mg is a powerful ED medication that contains Tadalafil, a PDE5 inhibitor. It works by increasing blood flow to the penis, which helps men achieve and maintain a strong erection when sexually stimulated. What makes Vidalista unique is its long-lasting effect, often called the "weekend pill" due to its ability to remain effective for up to 36 hours.