Viagra, also known as sildenafil, is a well-known drug prescribed to treat erectile dysfunction (ED) in men. Since its introduction, it has been a game-changer for millions of individuals looking to improve their sexual health and quality of... moreViagra, also known as sildenafil, is a well-known drug prescribed to treat erectile dysfunction (ED) in men. Since its introduction, it has been a game-changer for millions of individuals looking to improve their sexual health and quality of life.