Pharma Tips

Introduction to Pharmacology

By: Pharma Tips | Views: 3145 | Date: 03-Oct-2011

Drugs—chemical substances used or intended to be used to modify or explore the physiological condition or pathological state for the benefit of the recipient. Drugs may be used for prevention, diagnosis and treatment.

Introduction to Pharmacology

Drugs—chemical substances used or intended to be used to modify or explore the physiological condition or pathological state for the benefit of the recipient. Drugs may be used for prevention, diagnosis and treatment.

It is the science of drugs derivedfrom two Greek words: Pharmakon (the Greek word for drugs) and logos (theGreek word for science). It is the study of the effects of chemicals on livingtissues. The word drug refers to a dry substance and probablyreflects the use of herbs in early therapy.

Broadlydefined, a drug is a chemical substance that can alter or influence theresponsiveness of a biological system.
Accordingto the Food and Drug Administration (FDA) all drugs are chemicals, BUT, allchemicals are not drugs.  All drugs arepoisons, BUT, all poisons are not drugs.
 FDA defines the chemical “a substance composedof a combination of elements (electrons, protons, and neutrons)” and drug “achemical which is utilized for the diagnosis, prevention, cure or ameliorationof an unwanted health condition”
Accordingto Federal Food, Drug, and Cosmetic (FDC) Act, the term “drug” means (A)articles recognized in the official United States Pharmacopeia, officialHomeopathic Pharmacopoeia of the United States,or official National Formulary, or any supplement to any of them; and (B)articles intended for use in the diagnosis, cure, mitigation, treatment orprevention of disease in man or other animals; and (C) articles (other thanfood) intended to affect the structure or any function of the body of man orother animals; and (D) articles intended for use as a component of any articlesspecified in clause (A), (B), and (C), and “Food” means (1) articles used forfood or drink for man or other animals, (2) chewing gum, and (3) articles usedfor components of any other such article.


Major divisions of pharmacology—

1. Pharmacokinetics.

2. Pharmacodynamics.


Other divisions—

1. Pharmacotherapeutics.

2. Clinical pharmacology.

3. Pharmacogenetics

4. Immunopharmacology

5. Pharmacognosy

6. Toxicology

7. Pharmacopoeia


Pharmacokinetics—(what the body does to the drug)—it is the branch of pharmacology that deals with drug dose, routes of administration and absorption, distribution, metabolism and excretion.

Pharmacodynamics—(what the drug does to the body)—it is a branch of pharmacology that deals with the mechanism of action, pharmacological effects, indication and contraindication of use and adverse effects of drugs.

Toxicology—it is the branch of pharmacology which deals with poisonous drugs, their source, properties, sign-symptoms they produce and management of poisoning.

Pharmacopoeia—it is a book published by authority of recognized body which contains list of drug, their properties, description, preparation and method of prescribing.

Pharmacogenetics—it is that branch of pharmacology which deals with genetic variations to the drug response.

Ex—

 Isoniazide is an anti-tubercular drug which is metabolized by acetylation. If acetylation process is increased in that person for genetic factor  then more drug is needed.

 Patients with glucose-6-phosphate dehydrogenase deficiency may produce haemolytic anaemia if anti-malarial drug is given

Previous Page Next Page

People Searching On This Page:
  • define phamacology
  • introduction
  • define pharmacology and its beanches.
  • Pharmacology and its branches
  • Define Pharmacology and its branches.
  • history of phamacology
  • pharmacology means
  • branches of phamacology
  • Lists of branches of pharmacology
  • the branches of pharmacology
  • branches of pharmacology
  • acetylation, intro pharmacology
  • Pharmacology relates to culture
  • history of pharmacology
  • what is a tablet in phamacology

Related Pages


Introduction and  History of Plant   Tissue   Culture

Introduction and History of Plant Tissue Culture

Articles | Pharmacognosy | Plant Tissue Culture
Date:
29-Mar-2011  Views: 36119

Most methods of plant transformation applied to GM crops require that a whole plant is regenerated from isolated plant cells or tissue which have bee ...
Introduction of  Hypertension

Introduction of Hypertension

Articles | Pharmacology | Cardio Vascular System
Date:
29-Mar-2011  Views: 3648

Blood pressure is the force with which blood pushes against the artery walls as it travels through the body. Like air in a balloon, blood fills arteri ...
Introduction Of Good Manufacturing Practices (GMPs)

Introduction Of Good Manufacturing Practices (GMPs)

Articles | Quality Assurance | GMP
Date:
29-Mar-2011  Views: 6308

Good Manufacturing Practice (cGMP) is the term used to define the latest best practice for the manufacture of pharmaceutical and allied products in va ...
Introduction of Effervescent Tablet

Introduction of Effervescent Tablet

Articles | Pharmaceutics | Tablet
Date:
29-Mar-2011  Views: 11180

As per revised definition proposed to US FDA, Effervescent tablet is a tablet intended to be dissolved or dispersed in water before administration.Eff ...
Introduction to Drug Dissolution Technology

Introduction to Drug Dissolution Technology

Articles | Pharmaceutics | Tablet
Date:
23-Mar-2011  Views: 11537

Dissolution is the process by which a solid solute enters in to a solution. In the pharmaceutical industry, it may be defined as “the amount of drug s ...
Post Your Comments (No Login Require)
Name : (required)
Email : (required)
Website :

Comment : (required)

72  + 2 =     
Comments
People Searched About:
Define Phamacology   |   Introduction   |   Define Pharmacology And Its Beanches.   |   Pharmacology And Its Branches   |   Define Pharmacology And Its Branches.   |   History Of Phamacology   |   Pharmacology Means   |   Acetylation, Intro Pharmacology   |   Pharmacology Relates To Culture   |   History Of Pharmacology   |   What Is A Tablet In Phamacology   |  
Google : 651 times | Yahoo : 17 times | Bing : 168 times |