Module 1: Foundations Flashcards
Pharmacology definition
the science of drug action; The study of the actions of drugs and their effects on living organisms
umbrella term meaning what a drug does to body☂️
Pharmacodynamics
What the drug does to the body after reaching the binding site
Neuropharmacology
study of drug-induced changes in nervous system cell functioning.
Psychopharmacology
emphasized drug-induced changes in mood, thinking, and behavior
neuropsychopharmacology
drug-induced changes in mood, thinking, behavior, and brain activity and throughout the nervous system cell function.
the study of chemical substances that act on the nervous system to alter behavior that is disturbed due to injury, disease or environmental factors
drug action
molecular changes produced by a drug when it binds to its target site or receptor
drug effect
molecular changes alter physiological or psychological functions
therapeutic effects (TE)
effects on behavior or physiology that are DESIRED
side effects (SE)
effects on behavior or physiology that are UNDESIRED
side effects (SE)
effects on behavior or physiology that are NOT DESIRED
- caused by drug acting or binding to multiple targets or receptors
- each receptor has many subtypes
- receptors expressed in different areas of the body and in different brain regions
Can TE and SE be flipped depending on the drug or the desired outcome?
Yes, depending on how the drug is intended to aid the body, the TE and SE can flip such as amphetamines prescribed for narcoleptics so the TE: insomnia during the day and the SE: appetite suppressant. The same medicine can be used to those needing weight loss so now the TE: appetite suppressant and SE: insomnia during the day.
Why are side effects a thing?
because drugs are not specific enough to only hit one receptor and they hit other ones from time to time
- 3 reasons specific on other side effect flash card
Specific drug effects
hit a particular receptor - based on physical and biochemical interactions of a drug with a target site in living tissue
Nonspecific drug effects
based on certain unique characteristics of the individual (mood, expectations, perceptions, attitudes when taking drug, placebo effect, general molecular effects)
- can’t always be predetermined of the drug
Is there such thing as good and bad drugs?
No, some drugs have drug effects that are considered desired vs undesired but it really depends on why u are taking or prescribed the drug, some better treat different things
placebo (NS or S drug effect?)
Nonspecific effect since it can produce a physiological change and both a therapeutic and side effects. It is a pharmacologically inert compound.
Classical Conditioning
Pavlov -> symptom relief in the past (visiting dr office) was effective in relieving symptoms
- belief that a drug may produce real physiological effects despite the lack of a drug action
Expectancy effect and how to prevent?
those who expect a drug to work, find relief and vise versa
- prevented with double blind trials and placebos help
- ex: doctor smith vs nurse smith - different connotations of the word
does the color of pill you give someone cause an effect on the se or te that the patient receives and which color says what?
yes color effects how well the patient expects a drug to help
- red and orange: stimulants
- yellow: antidepressants
- green: anxiety
- white: pain
- blue: sedative (except in italy)
In what ways do Pharmacokinetic factors determine drug action?
- methods of administration and their impact on the onset of drug action/effects
- factors that modify drug absorption
- depot binding
- biotransformation and elimination
Pharmacokinetics
what the body does to a drug and the dynamic factors that contribute to bioavailability - if a drug doesn’t reach the site of action, there will be no effect.
Bioavailability
amount of drug that is free to interact with targets
pharmacodynamics
what the drug does the body - what effects does it produce
What are the Pharmacokinetic factors
- routes of administration
- absorption and distribution
- binding
- inactivation
- excretion