A single dose ofVilitra 20 mgwould be obtained in 24 hours and the overdose that would cause the worst side effects in the body would be avoided. Please keep a 24-hour difference between 2 doses for the safety of your well-being. This medicine should be obtained at least 30 minutes before the planned sexual intercourse, as the initial phase of Vardenafil lasts between 10 and 30 minutes. Once the drug stays active in your system, it stays effective for about 5 hours. If you are sexually aroused during these hours, you will surely achieve successful erections.