No, it’s not safe to just take an eighty-mg dose of Cialis. The maximum recommended day-to-day dosage of Cialis is twenty mg a day if you're taking it as wanted for ED. If you take Cialis everyday, the utmost dosage is five mg daily.Non è noto se tadalafil sia efficace in pazienti che sono stati sottoposti a chirurgia pelvica o a prostatectomia