Tadalista 20 mg contains tadalafil, a prescription medicine used to treat erectile dysfunction (ED) in adult men. It helps improve the ability to achieve and maintain an erection by increasing blood flow to the penis during sexual stimulation.Tadalafil belongs to a class of drugs called PDE5 inhibitors. It works by blocking the PDE5 enzyme, which allows a natural chemical (cGMP) to stay active longer. This relaxes blood vessels in the penile tissue and improves circulation. However, Tadalista 20 mg only works when there is sexual arousal and does not increase sexual desire. https://www.genericday.com/tadalista-20-mg.html