of the most often prescribed drugs for medical treatment of female sexual dysfunction and male erectile dysfunction. When patients attest to the goodness and efficacy of this drug, it is hardly surprising. It works by increasing blood flow to all parts of the body, including the brain, spinal cord, and penis. This improved blood flow throughout the body aids in the prevention of a few systemic diseases, such as stroke and cardiac arrest. It even significantly reduces the risk of stroke along with various serious illnesses.