Pharmacology Flashcards
High abuse potential but with legitimate medical purpose
Schedule 2
Examples of schedule 2 drugs
Fentanyl, methylfenidate (ritalin), cocaine
Example of schedule 1 drugs
Heroin, marijuana, LSD
Diazepam & lorazepam are schedule ___ drugs
4
Hydrocodone, ketamine, and APAP w/ codeine are schedule ___ drugs
3
Schedule ___ drugs may not be prescribed, dispensed, used, or administered for medical use
1
Versed (midazolam), Valium (diazepam), and Ativan (lorazepam), are schedule ___ drugs
4
Fentanyl and morphine are schedule ___ drugs
2
The biological and physiologic effects, and mechanism of action of a medication
Pharmacodynamics
The action of the body on a medication
Pharmacokinetics
___ medications work by binding a cell receptor site in order to induce a particular response
Agonist
___ medications work by binding a cell receptor site in order to block a particular action from another chemical
Antagonist
Ability of a medication to bind with a particular receptor site:
Affinity
Alpha 1 receptor agonists cause:
Vasoconstriction
Insulin restriction, glucagon secretion, and inhibition of norepinephrine release are the agonist effects of what type of receptors?
Alpha 2
Agonist effects on ___ receptors causes increased hr, increased myocardial contractility, increased myocardial conduction, and renin secretion for untnory retention
Beta 1
Airway smooth muscle relaxation, insulin secretion, uterine relaxation, and arterial dilation are caused by agonist binding of ___ receptors
Beta 2
Agonist binding of ___ receptors causes vasodilation of mesenteric arteries
Dopaminergic
Agonist binding of ___ receptors allow ach to stimulate muscle contraction
Nicotinic
Agonist binding of ___ receptor sites in the heart are activated by ach to offset SNS stimulation (decreased hr, contractility, and conduction velocity)
Muscurinic-2
Agonist binding of ___ receptors produce analgesia, euphoria, respiratory depression, and other effects
Opioid
Medication concentration required to initiate a cellular response:
Potency
As a medications potency increases, the ___ decreases
Required dose/concentration
A medications ability to initiate or alter cell activity in a desired manner
Efficacy
The ___ of a medication is lower for medications with a higher potency
Threshold Dose
___ meds bind with receptor sites to prevent a cellular response by agonist chemicals
Antagonist
___ antagonists temporarily bind with receptor sites to displace agonist chemicals
Competitive
The efficacy of competitive antagonists is directly related to:
Its concentration near receptor sites
Noncompetitive antagonists work by:
Permanently binding receptor sites and preventing action by agonist chemicals
___ drugs effectively lower the efficacy of other agonist chemicals
Partial agonist
Drugs in pregnancy risk category _ have shown to have little to no risk to the fetus during the first trimester and only remote possibility of fetal harm
A
Drugs in Pregnancy risk category __ have either no control study in humans or show an adverse effect that was not confirmed in first trimester studies
B
Drugs in Pregnancy risk category __ should only be given if the potential benefit justifies the potential fetal risk
C
Drugs in pregnancy risk category __ show positive evidence of fetal risk i and should only be given in life threatening situations or when safer drugs cannot be used or are ineffective
D
Drugs in pregnancy risk category __ have shown evidence of fetal abnormalities or risk or both and risk to the pregnant woman clearly out weighs any benefit
X
Representation of the relationship between a medication dose & efficacy:
Dose-response curve
Formula for ideal weight of a male:
Ideal weight (kg) = 50 + (2.3 x pts height in inches above 5 ft)
Formula for ideal weight of a female
Ideal weight (kg) = 45.5 + (2.3 x pts height in inches above 5 ft)
% Of RBC’s in the intravascular space
Hematocrit
Administration of Several smaller doses of a med intended to produce the same clinical effects as a single, larger dose:
Cumulative action
Undesired clinical effects caused by a medication that may Cause some degree of harm ordiscomfort:
Untoward/adverse effects
Adverse effects that are Unexpected, uncommon, or not previously known to occur with a particular Med:
Idiosyncratic reactions
Process involving a mechanism that reduces available receptors for a particular med:
Down-regulation
Resistance to a drug in the same class as another to which an individual has had repeated exposure
Cross-tolerance
Intolerance caused by repeated doses of a drug within a short time
Tachyphylaxis
Chemicals which cause transient increases in physical mental, or emotional performance:
Stimulants
Chemicals which reduce CNS & SNS functioning
Depressants
Abnormal tolerance to therapeutic or adverse effects of a substance due to repeated exposure
Habituation
Physical, emotional, or behavioral need for a substance in order to maintain “normal” function:
Dependence
Undesirable medication interactions
Medication interference
Combination of 2+ medications with similar effects that combine to equal the sum of effects
Summation/addition
2 medications with similar effect combine to produce effects greater than the sum of the medications effects
Synergism
Enhancement of one medication by another
Potentiation
Large quantities of unbound drug due to either reduced body protein, or protein that is saturated with another drug, can cause ___
Toxicity
Main plasma protein used in absorbing drug particles
Albumin