Pharmacology is a basic and applied medical science dealing with Rational Drug Therapy. The medical, dental and other health science students are primarily concerned with the applied aspect of pharmacology. Correct and skillful application of drugs is impossible without a proper understanding of basic pharmacology. Pharmacology includes both fundamental background and clinical pharmacological information. Emphasis lied on both. Action, usage, and side effects of drugs are important to the students from the viewpoint of recent advances in the field of medicine.