What is Pharmacology?

It is the science that deals with the study of drugs and its effect on biological system

What is a drug

Who definition..Drug is any substance or product used or intended to be used to modify or explore the physiological state or pathological condition for the well being of the recipient

Pharmacology is about:

Pharmacokinetics(what the body does to drug); Pharmacodynamics(what the drugs does to the body); Pharmacotherapeutics(The study of the use of drugs); Pharmacocognosy(identifying crude materials as drugs); Toxicology.

Pharmacokinetics

The magnitude of the pharmacological effect of a drug depends on its concentration at the site of action.

Pharmacodynamics

Interraction of drugs with cellular proteins, such as receptors or enzymes, to control changes in the physiological function of particular organs.

• Drug-Receptor interractions <Binding>
• Signal Transduction <Mechanism of action, pathways>
• Dose-Response <Effect>

Drug Formulation

Important abbreviation: Solid--> g=gram      mg=miligram      ug=microgram.   Liquid--> L=litre     ml=mililitre      ul=microlitre