We all know how much time, effort and money it takes to develop a new drug. Hundreds of chemical compounds have to be synthesized and thousands of different activities in biology, physiology, pharmacology, clinical investigation, management and marketing have to be initiated and coordinated. Each new drug starts a voyage of discovery through an unmapped terrain which is shrouded in mist and beset by pitfalls, as Dr. Rein Vos puts it in his absorbing inside story of the development of the beta-adrenoceptor blocking agents and the calcium antagonists. Indeed we know, for example, how long it...