This course is concerned with the study of the general actions and mechanisms of actions of the various hormones and the diseases that follow disturbances in their normal release. Drugs and their mechanisms in the treatment of these disorders will be discussed. The side effects of the named drugs will be outlined. Furthermore, the course involves the study of the causes and the topical treatment of some skin diseases. The mechanisms and the limitations of the various drugs used will be discussed. A certain part of the course deals with the uses and mechanisms of action of some antidiarrheals and laxatives.