Vidalista 20 mg is a medication used to treat Erectile Dysfunction (ED). It contains Tadalafil, the same active ingredient found in Cialis. This drug is part of a group called PDE5 inhibitors, which work by improving blood flow to the penis. The key action of Vidalista 20 mg is to help achieve and maintain a strong erection during sexual arousal. When a man is sexually stimulated, the body releases nitric oxide in the penis. This triggers the production of a substance called cGMP, which helps relax and widen the blood vessels. As a result, more blood flows into the penis while the outflow is reduced, leading to an erection. Erectile Dysfunction can be caused by both physical and psychological factors. Vidalista 20 mg helps by supporting the natural erection process in response to sexual stimulation.