Cialis has very strong action, that's why most of the time it using for treatment of erectile dysfunction. It explains that Cialis has number of pluses which are typical only for this remedy and due to this; it is easy to get such strong action. One of pluses Cialis is duration of action, something about 36 hour's unstoppable work. In continuous of days you will be absolutely active and you won't get problems with erection because due to Cialis problems can't exist.