cialis princiapl investigator

Tadalafil, sold under the name of Cialis is a new group of medication which allows adequate sexual stimulation, relaxes the blood vessels of the penis and helps erection. The recommended dose of Tadalafil is 20mg.

Cialis is the only drug which is not only fast acting (works in 30 minutes) but is also know to be effective for as long as 36 hours, thus enabling you to choose the moment that is just right for you as well as your partner. You can take Cialis in the morning and be ready for the right moment during that day, evening or even during the next day. Millions of men have benefited from Cialis as it works effectively in mild, moderate or severe erectile dysfunction.