Introduction

Nitric oxide (NO) is a natural gas that is produced by the body to ensure vasodilation of blood vessels and healthy circulation. When penile erections occur in men, it is because NO is released in large amounts in the local tissues to significantly increase the blood flow into the penis tissues. Medications to treat erectile dysfunction in men, such as Viagra, are known to stimulate NO production in the body. While it is easy for many men to get a prescription for these drugs, th...

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