The only distinction between Levitra and also Cialis is the above-specified element of the duration of the effectiveness of the medication on your blood flow. It works by unwinding your penis muscle mass which consequently leads to the flow of blood through the artery. And also as the blood flows in the penis gets stiffer as well as you obtain an erection. 시알리스 구매 At that time, the swelling of the penis obstructs the flow of blood from the penis through the vein as well as this in turn maintains the penis erect. And also this procedure is maintained till the time the penis climaxes.