Because the most common cause leading to VBI is the atherosclerosis, the primary prevention of VBI is partly the same with the extracranial carotid atherosclerosis.
Besides to the treatment to reduce the risk of atherosclerosis,patients should  also discuss with their physician other possible causes for their VBI symptoms.  As discussed above, postural changes, exercise, and dehydrationare some of the likely culprits.  Treatment usually involves lifestyle modifications.  For example, if VBI is attributed mainly to postural changes, patients are advised to slowly rise to standing position after sitting for a long period of time.  An appropriate exercise regimen for each patient can also be designed in order to avoid the excessive pooling of blood in the legs.  Dehydrated patients are often advised to increase their water intake, especially in hot, dry climates.  Finally, when applicable, patients are often advised to stop smoking and to control their hypertension, diabetes, and cholesterol level.
In the event that a patient suffers a “drop attack,” and especially for the elderly population, the most important action is to be evaluated for associated head or other injuries.  To prevent drop attacks, patients are advised to “go to the ground” before the knees buckle and shortly after feeling dizzy or experiencing changes in vision.  Patients should not be concerned about the social consequences of suddenly sitting on the floor, whether in the mall or sidewalk, as such actions are important in preventing seriousprevention injuries.
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