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Hand Book of Pharmacology for Ayurveda Students

Hand Book of Pharmacology for Ayurveda Students

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Item Code: NBZ630
Author: Nimmy V. S. and Praveen Kumar K. S.
Publisher: Chaukhambha Visvabharati , Varanasi
Language: English
Edition: 2021
ISBN: 9788194356691
Pages: 126
Cover: PAPERBACK
Other Details: 8.50 X 5.50 inch
Weight 150 gm
About The Book

Handbook of Pharmacology for Ayurveda students is a humble attempt to cover the portions in the subject Dravyaguna vijnan in BAMS and PG Dravyaguna Vijnan courses. Efforts has been made to present the topics precisely according to the syllabus. Text has been written in simple language with tables and diagrams wherever necessary. Relevant references in classical and contemporary literature along with related research works has been provided for further information.

About the Author

Dr. Nimmy V. S., MD (Ay). Currently working as Assistant Professor, Department of Dravyaguna, Vaidyaratnam Ayurveda College, Ollur, Kerala. She had obtained her Post Graduate degree from Government Ayurveda College, Trivandrum under Kerala University of Health Sciences in 2017. Author is first rank holder from Kerala University of Health Sciences and has sound theoretical and practical knowledge in Dravyaguna. She has published many papers in reputed journals and has presented papers in many National and International seminars.

Dr. Prayeen Kumar K. S., MD (Ay). Currently working as Assistant Professor, Department of Panchakarma, PNNM Ayurveda College, Cheruthuruthy, Kerala. He had obtained his Post Graduate degree from Government Ayurveda College, Trivandrum in 2016 under Kerala University of Health Sciences. Author is also pursuing PhD in Panchakarma from Institute for Postgraduate Teaching & Research in Ayurveda, Jamnagar, Gujarat. Author has keen interest of research in Ayurveda and has received many awards at national level for essay and article writing. He has published many papers in reputed journals and has presented papers in many National and International seminars.

Introduction

Definition of Pharmacology

Pharmacology if simply stated is the science of drugs. It is the study of interaction of drugs with living organisms. Pharmacology includes the study of the source, physicochemical properties, dosage forms, and methods of administration, absorption, distribution, mechanism of action, biotransformation, excretion, clinical uses and adverse effects of drugs.

Drug

The word drug comes from a French word 'Drogue' meaning a dry herb. It can be defined as : 'Substance or material that is used or intended to be used to modify or explore physiological processes or pathological states, for the benefit of the recipient'.

The two main interconnected branches of pharmacology are : pharmacodynamics and pharmacokinetics.

Pharmacodynamics (what drug does with the body) is the study of the molecular, biochemical, and physiological effects of drugs on cellular systems and their mechanisms of action.

Pharmacokinetics (what body does with the drug) deals with the absorption, distribution, and excretion (ADME) of drugs within the body. It explores the relationship between ADME of the drug and the onset, duration and intensity of the drug effect. The word Pharmacokinetics' is derived from two words, Pharmacon' meaning drug and 'kinetics' meaning putting in motion.

Scope of Pharmacology

Several subjects like Pharmacokinetics, Pharmacodynamics, Pharmacotherapeutics, Chemotherapy, Toxicology, Clinical Pharmacology, Pharmacy, Pharmacogenetics, Pharmacovigilance etc. are incorporated within Pharmacology.

1. Pharmacodynamics : The effect of the drug on the body. Pharmacodynamics is the study of the relationship of drug concentration and the biologic effect (physiological or biochemical). It studies the dose-response relationship of the drug, site of action and mechanism of action of the drug.

2. Pharmacokinetics : The effect of the body on the drug. A drug must be present in appropriate concentrations at its sites of actionto produce its characteristic effects. Pharmacokinetics studies the interrelationship of the absorption, distribution, biotransformation, and excretion of a drug and its concentration at its locus of action.

a) Absorption (Oral or Parenteral) : A drug must be absorbed and achieveadequate concentration at its site of action in order to produce its biologicaleffects.

b) Distribution : Penetration of a drug to the sites of action through the walls of blood vessels from the administered site after absorption is called drug distribution. Drugs distribute through various body fluid compartments such as (a) plasma (b) interstitial fluid compartment (c) trans-cellular compartment.

c) Metabolism : The process by which the body brings about changes in drug molecule is referred as drug metabolism or biotransformation. At the site of action, the drug interacts with cells and produces some pharmacological effects and thereafter gets eliminated from the body unchanged or by changing to some easily excretable molecules.

d) Excretion : Excretion of drugs means the transportation of unchanged or altered form of drug out of the body. The major processes of excretion include renal excretion, hepato-biliary excretion and pulmonary excretion. The minor routes of excretion are saliva, sweat, tears, breast milk, vaginal fluid, nails and hair. The rate of excretion influences the duration of action of drug.

3. Pharmacotherapeutics : It is the application of pharmacological information of a drug together with the knowledge of disease, for the prevention and cure of the disease.

4. Chemotherapy : Chemotherapy refers to the treatment of diseases by chemicals that kill the cells, especially those of microorganisms and neoplastic cells. It is classified into two divisions :

a) Antibiotics : Antibiotics are chemical substances that are most potent against the harmful microorganisms.

b) Antineoplastics : Drug therapy for cancer.

5. Toxicology : It's the science of poisons and the poisonous effects of drugs when taken in larger doses Poisons are substances that cause harmful, dangerous or fatal symptoms in living substances.Toxicology deals with the symptoms, mechanisms, treatment and detection of poisoning caused by different chemical substances.

6. Clinical pharmacology : Clinical pharmacology is the scientific study of drugs in man. It includes pharmacokinetic and pharmacodynamic investigations of the drug in healthy or diseased individuals. Aims include :

a) Maximize the effect of drug

b) Minimize the adverse effects

c) Promote safety of prescription

**Contents and Sample Pages**










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