Men are initially uncomfortable with the thought of injecting medication or anything else into their penis. When looking at male sexual health encompasses. It may seem doctors and medical professionals see these things day in day out and are not surprised or amused by anything. Impotence can vary from stress and anxiety, to underlying health issues such as erection problems, the experts say is through a combination of both. Sildenafil citrate is a drug used to curb erection problems and boost sexual performance in men.