Introduction, Routes Of Drug Administration Flashcards
Pharmacology
Is the science of drugs,
It deals with the exogenously administered chemical molecules with the living system
Drugs
the chemical substances which can produce a biological response
Who pioneered animal experiments to study effect of drugs
F.magende & Claude Bernerd
Father of pharmacology
Oswald Schmiedeberg
Two main divisions of pharmacology
Pharmacodynamic & pharmacokinetics
Pharmacodynamic
What the drug does to the body.
It includes the physiological and biological effects of drug and the mechanism of action at organ system, subcellular, macromolecular levels.
Pharmacokinetics
What the body does to the drugs.
It refers to the movement of drugs in and alteration of drugs by the body
Pharmacokinetics includes
A- absorption
D- distribution
M- metabolism
E- excretion
Absorption of paracetamol
almost completely absorbed orally attaining peak blood in 30-60 min
Distribution of paracetamol
Widely and almost uniformly distributed in body.
Volume of distribution ~1L/kg
Metabolism of paracetamol
Extensively metabolised in Liver,by glucuronide and sulfate conjugation
Excretion of paracetamol
Inactive metabolites excreted in urine
Plasma half life of paracetamol
2-3 hrs
WHO defination of drugs
Any substance or product that is used or intended to be used to modify and explore the physiological systems and pathological states for the benefit of the recipient.
Pharmacotherapeutica
It is the application of pharmacological information together with the knowledge of the disease for its prevention, mitigation or cure.
Clinical pharmacology
It is the scientific study of drugs in man
Chemotherapy
It is the treatment of systemic infection/malignancy with specific drugs that have selective toxicity for the infecting organisms/malignant cell with no/minimal effects on the host cell
Pharmacodynamic agents
These are the drugs designed to have pharmacodynamic effects in the recipient
Chemotherapeutic agents
These are the drugs designed to kill/inhibit invading parasites / malignant cell,but have no or minimal pharmacodynamic effects in the recipient
Pharmacy
It is the art of compounding and dispensing drugs or preparing suitable dosage forms for administration of drugs to man and animals.
Pharmaceutics
Large scale manufacturer of drugs
Toxicology
It is the study of the poisonous effect of drugs and other chemicals with emphasis on detection, prevention and treatment of poisoning
Orphan drugs
These are drugs or biological products for diagnosis/treatment/prevention of rare disease or condition for which there is no reasonable expectation that the cost of developing and marketing it will be recovered from the sales of that drug.
Governments in developed countries offer tax benefits and other incentives to pharmaceutical companies for developing and marketing orphan drugs.
Orphan drugs example
I’ll- illoprost
Call-colchicine, calcitonin
Car- carboprost
For- fomivirisen
Ritu- rituximab,rifaximin
coz she is an orphan