Sildenafil, for the treatment of erectile dysfunction, is one of the first products that has made its way successfully from basic NO (nitrous oxide) research, to clinical routine therapy. Sidenafil, part of the Milestones in Drug Therapy series, presents the major breakthroughs in the field of NO physiology and pharmacology that led to the development of the drug, as well as clinical applications in one source guide.§Written żeby leading experts in the field, each chapter covers aspects of clinical use and experience, pharmacokinetics, pharmacodynamics, biochemistry, and cultural science.§