Basic Pharmacology Flashcards
The science that deals with the study of drugs in all its aspects.
Pharmacology
The study of the drug in terms of its history, source of chemical and physical properties, mechanism of action, absorption, distribution, bio-transformations and other uses of the drug.
Pharmacology
The study of the way a drug is ABSORBED, then DISTRIBUTED to the tissues of the body, METABOLIZED and EXCRETED.
MOVEMENT of the drug in the body
Pharmacokinetics
- The study of a DRUG’s ACTIVITY, describing the nature and magnitude of the response, once it reaches its SITE OF ACTION.
- What the drug DOES to a body
Pharmacodynamics
Determines the DOSAGE of the drug recommended for patients, and HOW they should TAKE it.
Pharmacokinetic Profile
What are the 4 Pharmacokinetic Processes?
Absorption
Digestion
Metabolism
Excretion
The process by which a drug moves from the SITE OF ADMINISTRATION into the BLOODSTREAM.
Absorption
The process by which a drug, when taken, is PARTITIONED among THE VARIOUS ORGANS and TISSUES in the body where the drug EXERTS ITS ACTION.
Distribution
The process by which a drug in the body may be changed into other, usually smaller, molecules called METABOLITES.
Metabolism
The process by which drugs or their metabolites are eliminated from the body
Excretion
Rate of absorption affects _______ and ______.
Duration
Intensity of Action
Factors affecting absorption are:
Gastric Motility Rate of Blood Flow Area of Absorbing Surface Molecular Size Solubility
GRAMS
Body compartments in which drugs accumulate
Reservoir
Also known as biotransformation
Metabolism
True or False.
Metabolites may be active or inactive, usually lees active than the parent drug
True
Metabolism happens in the _____, if drug is taken orally.
Liver
True or False.
Lipid Soluble drugs are eliminated faster
False. They are eliminated slowly
True or False.
Drugs are eliminated in the body either unchanged or as metabolites
True
What are the 7 excretory Routes.
Sweat Tears Respiratory Gases Saliva Mother's Milk Urine Stool
What are the 6 Pharmacokinetic Parameters?
Bioavailability Area under the curve Peak serum concentration Half life First-pass effect Blood protein binding
The amount of the ADMINISTERED drug which arrives in its THERAPEUTIC form at the SITE OF ACTION
Bioavailability
Measurement of the AMOUNT of drug that has been ABSORBED at a GIVEN TIME after administration
Area under the Curve
The MAXIMUM level of drug achieved in the BLOODSTREAM
Peak serum drug concentration
The TIME it takes for the concentration of the drug in the bloodstream to fall to half of its peak value.
Half Life