Pharmacological studies range from those that examine the effects of chemical agents on subcellular mechanisms, to those that deal with the potential hazards of pesticides and herbicides, to those that focus on the treatment and prevention of major diseases with drug therapy. Integrating knowledge in many related scientific disciplines, pharmacology offers a unique perspective to solving drug, hormone, and chemical-related problems as they impinge on human health. As it unlocks the mysteries of drug actions, discovers new therapies, and develops new medicinal products, pharmacology inevitably touches all our lives.