Name: Miss Noor Afzal Designation: Demonstrator Department: DEAHT E-mail: [email protected] Week no: 01: Introduction to Pharmacology
Content: Introduction to Pharmacology Introduction to Drugs Branches of Pharmacology Significance and Importance of Pharmacology
Basic Defination of Pharmacology : “ The Branch of Science that deals with the study of Drugs, Drug effects on Body and Body response to the Drugs is called as Pharmcology. ”
Basic Defination of Drug : “ An agent used for the Diagnosis, Prevention and Treatment of a disease is called a Drug. ”
Branches of Pharmacology: Following are the important branches of Pharmacology: 1. Pharmacokinetics 2. Pharmacodynamics 3. Therapeutics 4. Chemotherapy 5. Toxicology 6. Clinical Pharmacology 7. Pharmacy 8. Pharmacogenetics 9. Pharmacoeconomics 10. Pharmacoepidemiology 11. Comparative Pharmacology 12. Animal Pharmacology 13. Pharmacoeconomics 14. Posology
“ The branch of pharmacology that deals with the absorption, distribution, metabolism and excretion of drugs and their relationship with the onset, duration and intensity of the drug effect. ” 1. Pharmacokinetics:
2. Pharmacodynamics: “ Pharmacodynamics is the branch of Pharmacology that deals with the mechanism of action of drug and the relation between the drug concentration and its effect. ”
3. Therapeutics: “ The branch of pharmacology that deals with the art and science of treatment of disease. It is the application of pharmacological information 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, specially those of microorganisms and neoplastic cells. ”
5. Toxicology: “ Toxicology is the branch of pharmacology which includes the study of adverse effects of drugs on the body. It 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 in healthy or diseased individuals. ”
7. Pharmacy: “ Pharmacy is the branch of Pharmacology and is the art and science of compounding by dispensing drugs, preparing suitable dosage form for administration to man and animals. The health profession blends health science with chemical science and effective use of drugs.”
8. Pharmacognosy: “ Pharmacognosy is the identification of drugs by just seeing or smelling them.Basically it deals with the drugs in crude or unprepared form and study of properties of drugs form natural sources or identification of new drugs obtained from natural sources. ”
9. Pharmacoeconomics: “ Pharmacoeconomics deals with the cost of drugs. In this discipline the cost of one drug is compared with another for same use. The cheap drugs are preferred. ”
10. Pharmacogenetics: “ Branch of pharmacology dealing with the genetic variations that cause difference in drug response among individuals or population. ”
11. Pharamcogenomics: “ Pharmacogenomics is the broader application of genomic technologies to new drug discovery and further characterization of older drugs. ”
12. Pharmacoepidemiology: “ Pharmacoepidemiology deals with the effects of drugs on a large population. The effects may be good or harmful. ”
13. Comparative Pharmacology: “ Branch of pharmacology dealing with the comparison of one drug to another belonging to the same or another group. ”
14. Posology: “ Posology deals with the dosage of drugs. Example includes paracetamol given as one tablet of 500mg thrice a day. ”
15. Animal Pharmacology: “ Animal pharmacology deals with the different properties of drugs in animals. A vast variety of animals are utilized including rabbits, mice guinea pigs, etc. Drugs are given to the animals and all parameters (their behavior, activites, vital signs, etc.) are recorded. ” _______________________
Significance and Importance of Pharmacology: 1: Understanding Drug Action Pharmacology helps us understand how drugs interact with the body, including their mechanisms of action, therapeutic effects, and side effects. This knowledge is crucial for developing effective treatments. 2: Development of New Medicines It plays a key role in the discovery and development of new drugs that can treat diseases more effectively and with fewer adverse effects.
3: Safe and Effective Drug Use Pharmacology guides the safe administration of drugs, including correct dosages, timing, and interactions, ensuring patients receive maximum benefit with minimum risk. Significance and Importance of Pharmacology: 4: Disease Management and Prevention Pharmacology aids in managing chronic and acute diseases through drug therapy, as well as in preventive measures like vaccines and prophylactic medications.
Significance and Importance of Pharmacology: 5: Basis for Clinical Practice Medical professionals rely on pharmacological knowledge to make informed decisions about prescribing drugs and monitoring patient responses. 6: Research and Innovation It drives medical research, contributing to innovations that improve public health and patient care. ______________________________