Men who have trouble getting and maintaining an erection use tadalafil as an erectile dysfunction (ED) medication. Since it is the generic (non-branded) version of Cialis, their effectiveness is similar because they both contain the same active ingredient, tadalafil. The term "generic Cialis" is often used to refer to tadalafil. Tadalafil and Cialis have similar effects and are interchangeable terms. You can get Tadalista 20 online from our site. When you are sexually aroused, tadalafil works by increasing blood flow to the penis. Increased blood flow helps achieve and maintain an erection. One pill should be taken about 30 minutes before sexual activity. Tadalafil is most effective after 2 hours, so you may want to take the tablet a little sooner. You can take the tablets with a glass of water. Taking these pills on an empty stomach is not a concern. Unlike Viagra, food has no effect on the absorption of Tadalafil.