With prolonged exposure to Vidalista 20 medicine, it became the most commonly prescribed medication for erectile dysfunction. Tadalafil contains a substance that stimulates blood circulation in the penis during sexual arousal which leads to an erection. The effect of this drug usually lasts for 3 to 4 hours. This drug should only be taken by men aged 16 and over. Using this medicine improves your sex life. Visit our official site erectilepharma.com for more information.