pulmonaryhypertension

The Truth About Penis Size and Viagra: Does It Really Make a Difference?

Understanding How Viagra Works Viagra, also known by its generic name sildenafil, is a medication commonly used to treat erectile dysfunction (ED). ED is a condition in which a man has difficulty achieving or maintaining an erection during sexual activity. Viagra works by increasing blood flow to the penis, which helps a man achieve and maintain an erection. It does…