Pharmacology is the science of drug action on biological systems. It embraces the knowledge of the sources, chemical properties, biological effects and therapeutic uses of drugs. It is a science that is basic not only to medicine but also to the pharmacy, nursing, dentistry and veterinary medicine.
Pharmacological studies range from those that determine the effects of chemical agents upon 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 by drug therapy. Pharmacologists are also involved in molecular modelling of drugs, and the use of drugs as tools to dissect aspects of cell function.
Pharmacology is an essential subject to understand the action of drugs. I have made an attempt to provide you with some materials about pharmacology, drug classifications and some others in this Rudra’s Pharma Lores site.