No, it’s not Risk-free to just take an eighty-mg dose of Cialis. The maximum recommended day by day dosage of Cialis is 20 mg a day if you take it as wanted for ED. If you're taking Cialis every day, the utmost dosage is five mg a day.an erection that will not go away (priapism). When you have an erection that lasts in excess of 4 hrs, get health