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140 Cards in this Set

  • Front
  • Back
Chemical used to diagnose, treat, or prevent disease.
Drug
The study of drugs and their interactions with the body.
Pharmacology
Drug Names
- Chemical name
- Generic name
- Official name
- Brand name
Sources of Drug Information
- United States Pharmacopeia (USP)
- Physician's Desk Reference
- Drug Information
- Monthly Prescribing Reference
- AMA Drug Evaluation
Components of a Drug Profile
- Names
- Classification
- Mechanism of Action
- Indications
- Pharmacokinetics
- Side Effects/Adverse Reactions
- Routes of Administration
- Contraindications
- Dosage
- How Supplied
- Special Considerations
Drug Laws and Regulations
- Federal law
- State laws and regulations
- Individual agency regulations
Schedule I
High abuse potential; may lead to severe dependence; no accepted medical indications; used for research, analysis, or instruction only (Heroin, LSD, mescaline)
Schedule II
High abuse potential; may lead to severe dependence; accepted medical indications (Examples: Opium, cocaine, morphine, codeine, oxycodone, methadone, secobarbital)
Schedule III
Less abuse potential than Schedule I and II; may lead to moderate or low physical dependence or high psychological dependence; accepted medical indications (Examples: Limited opioid amounts or combined with noncontrolled substances: Vicodin, Tylenol with codeine)
Schedule IV
Low abuse potential compared to Schedule III; limited limited psychological and/or physical dependence; accepted medical indications (Diaepam, lorazepam, phenobarbital)
Schedule V
Lower abuse potential compared to Schedule IV; may lead to limited physical or psychological dependence; accepted medical indications (Examples: Limited amounts of opioids; often for cough or diarrhea)
4 Main Sources of Drugs
- Plants
- Animals
- Minerals
- Laboratory (synthetic)
Test that determines the amount and purity of a given chemical in a preparation in the laboratory
Assay
Relative therapeutic effectiveness of chemically equivalent drugs
Bioequivalence
Test to ascertain a drug's availability in a biological model
Bioassay
Six Rights of Medication Administration
- Right medication
- Right dose
- Right time
- Right route
- Right patient
- Right documentation
Medication packages contain a single dose for a single patient
Dose packaging
Special Considerations
- Pregnant patients
- Pediatric patients
- Geriatric patients
Medication that may deform or kill the fetus
Teratogenic drug
Proportion of a drug available in the body to cause either desired or undesired effects
Free drug availability
FDA Pregnancy Category A
Adequate studies in pregnant women have not demonstrated a risk to the fetus in the first trimester or later trimesters.
FDA Pregnancy Category B
Animal studies have not demonstrated a risk to the fetus, but there are no adequate studies in pregnant women.
OR
Adequate studies in pregnant women have not demonstrated a risk to the fetus in the first trimester and there is no risk in the last trimester, but animal studies have demonstrated adverse effects.
FDA Pregnancy Category C
Animal studies have demonstrated adverse effects, but there are no adequate studies in pregnant women; however, benefits may be acceptable despite the potential risks.
OR
No adequate animal studies or adequate studies of pregnant women have been done.
FDA Pregnancy Category D
Fetal risk has been demonstrated. In certain circumstances, benefits could outweigh the risks.
FDA Pregnancy Category X
Fetal risk has been demonstrated. This risk outweighs any possible benefit to the mother. Avoid using in pregnant or potentially pregnant patients.
How a drug is absorbed, distributed, metabolized (biotransformed), and excreted; how drugs are transported into and out of the body.
Pharmacokinetics
How a drug interacts with the body to cause its effects
Pharmacodynamics
Requires the use of energy to move a substance
Active transport
Process in which carrier proteins transport large molecules across the cell membrane
Carrier-mediated diffusion
or
facilitated diffusion
Movement of a substance without the use of energy
Passive transport
Movement of solute in a solution from an area of higher concentration to an area of lower concentration
Diffusion
Movement of solvent in a solution from an area of lower solute concentration to an area of higher solute concentration
Osmosis
Movement of molecules across a membrane from a higher pressure to an area of lower pressure
Filtration
Pharmacokinetic Processes
- Absorption
- Distribution
- Biotransformation
- Elimination
To become electrically charged or polar
Ionize
Amount of a drug that is still active after it reaches its target tissue
Bioavailability
Tight junctions of the capillary endothelial cells in the central nervous system vasculature through which only non-protein-bound, highly lipid-soluble drugs can pass
Blood-brain barrier
Biochemical barrier at the maternal/fetal interface that restricts certain molecules
Placental barrier
The body's breaking down chemicals into different chemicals
Metabolism
Special name given to the metabolism of drugs
Biotransformation
Medication that is not active when administered, but whose biotransformation converts it into active metabolites
Prodrug (parent drug)
The liver's partial or complete inactivation of a drug before it reaches the systemic circulation
First-pass effect
The loss of hydrogen atoms or the acceptance of an oxygen atom. This increases the positive charge (or lessens the negative charge) on the molecule
Oxidation
The breakage of a chemical bond by adding water or by incorporating a hydroxyl (OH-) group into one fragment and a hydrogen ion (H+) into the other
Hydrolysis
Drug Routes
- Enteral
- Parenteral
Delivery of a medication through the gastrointestinal tract
Enteral route
Delivery of a medication outside of the gastrointestinal tract, typically using needles to inject medications into the circulatory system or tissues
Parenteral route
Enteral routes
- Oral (PO)
- Orogastric/nasogastric tube (OG/NG)
- Sublingual (SL)
- Buccal
- Rectal (PR)
Parenteral routes
- Intravenous (IV)
- Endotracheal (ET)
- Intraosseous (IO)
- Umbilical
- Intramuscular (IM)
- Subcutaneous (SC, SQ, SubQ)
- Inhalation/Nebulized
- Topical
- Transdermal
- Nasal
- Instillation
- Intradermal
Solid drug forms
- Pills
- Powders
- Tablets
- Suppositories
- Capules
Liquid drug forms
- Solutions
- Tinctures
- Suspensions
- Emulsions
- Spirits
- Elixirs
- Syrups
Types of Drug Actions
- Binding to a receptor site (PRIMARY)
- Changing the physical properties of cells
- Chemically combining with other chemicals
- Altering a normal metabolic pathway
Specialized protein that combines with a drug resulting in a biochemical effect
Receptor
Force of attraction between a drug and an receptor
Affinity
A drug's ability to cause the expected response
Efficacy
Chemical that participates in complex cascading reactions that eventually cause a drug's desired effect
Second messenger
Binding of a drug or hormone to a target cell receptor that causes the number of receptors to decrease
Down-regulation
A drug causes the formation of more receptors than normal
Up-regulation
Drug that binds to a receptor and causes it ti initiate the expected response
Agonist
Drug that binds to a receptor but does not cause it to initiate the expected response
Antagonist
Drug that binds to a receptor and stimulates some of its effects but blocks others
Agonist-antagonist (partial agonist)
One drug binds to a receptor and causes the expected effect while also blocking another drug from triggering the same receptor
Competitive antagonism
The binding of an antagonist causes a deformity of the binding site that prevents an agonist from fitting and binding
Noncompetitive antagonism
A competitive antagonist permanently binds with a receptor site
Irreversible antagonism
Unintended response to a drug
Side effect
Correlation of different amounts of a drug to clinical response
Drug-response relationship
Describes the lengths of onset, duration, and termination of action, as well as the drug's minimum effective concentration and toxic levels
Plasma-level profile
The time from administration until a medication reaches its minimum effective concentration
Onset of action
Minimum level of drug needed to cause a given effect
Minimum effective concentration
Length of time the amount of drug remains above its minimum effective concentration
Duration of action
Time from when the drug's level drops below its minimum effective concentration until it is eliminated from the body
Termination of action
Ratio of a drug's lethal dose for 50 percent of the population to its effective dose for 50 percent of the population
Therapeutic index
Time the body takes to clear one half of a drug
Biologic half-life
Factors affecting drug-response relationship
- Age
- Body mass
- Sex
- Environment
- Time of adminitration
- Pathology
- Genetics
- Psychology
Drug that best demonstrates the class's common properties and illustrates its particular characteristics
Prototype
Medication that relieves the sensation of pain
Analgesic
The absence of the sensation of pain
Analgesia
The absence of all sensations
Anesthesia
Agent that enhances the effects of other drugs
Adjunct medication
Medication that induces a loss of sensation to touch or pain
Anesthetic
Anesthesia that combines decreased sensation of pain with amnesia while the patient remains conscious
Neuroleptanesthesia
State of decreased anxiety and inhibitions
Sedation
Instigation of sleep
Hypnosis
Drug used to treat mental dysfunction
Psychotherapeutic medication
Major Diseases Treated with Psychotherapeutic Medications
- Schizophrenia
- Depression
- Bipolar disorder
Common side effects of antipsychotic medications, including muscle temors and parkinsonism-like effects
Extrapyramidal symptoms (EPS)
Antipsychotic (literally, affecting the nerves)
Neuroleptic
Major Classes of Antipsychotic Medications
- Phenathiazines
- Butyrophenpnes
- Atypicals
Major Classes of Antidepressant Medications
- TCAs
- SSRIs
- MAOIs
The part of the nervous system that controls involuntary actions
Autonomic nervous system
Group of autonomic nerve cells located outside the central nervous system
Autonomic ganglia
Nerve fibers that extend from the central nervous system to the autonomic ganglia
Preganglionic nerves
Nerve fibers that extend form the autonomic ganglia to the target tissues
Postganglionic nerves
Space between nerve cells
Synapse
Specialized synapse between a nerve cell and the organ or tissue it innervates
Neuroeffector junction
Chemical messenger that conducts a nervous impulse across a synapse
Neurotransmitter
Nerve cell
Neuron
Pertaining to the neurotransmitter acetylcholine
Cholinergic
Pertaining to the neurotransmitter norepinephrine
Adrenergic
Cranial Nerves Carrying Parasympathetic Fibers
- III
- VII
- IX
- X
Drug or other substance that causes effects like those of the parasympathetic nervous system (also called cholinergic)
Parasympathomimetic
Drug or other substance that blocks or inhibits the actions of the parasympathetic nervous system (also called anticholinergic)
Parasympatholytic
Sludge Effects of Cholinergic Medications
- Salivation
- Lacrimation
- Urination
- Defecation
- Gastric motility
- Emesis
Types of Parasympathetic Acetylcholine Receptors
- Muscarinic
- Nicotinic
+Nicotinic^N (neuron)
+Nicotinic^M (muscle)
Effects of Atropine Overdose
- Hot as hell
- Blind as a bat
- Dry as a bone
- Red as a beet
- Mad as a hatter
Types of Sympathetic Receptors
- Adrenergic
= alpha 1
= alpha 2
= beta 1
= beta 2
- Dopaminergic
Drug or other substance that causes effects like those of the sympathetic nervous system (also called adrenergic)
Sympathomimetic
Drug or other substance that blocks the actions of the sympathetic nervous system (also called antiadrenergic)
Sympatholytic
Common Catecholamines
- Natural
= Epinephrine
= Norepinephrine
= Dopamine
- Synthetic
= Isoproterenol
= Dobutamine
Drug used to treat and prevent abnormal cardiac rhythms
Antidysrhythmic
Antidysrhythmics
Antidysrhythmics are routinely classified in the Vaughn-Williams and Singh Classification System.

- I: Na+ channel blockers
= 1A
= 1B
= 1C
- II: Beta-blockers
- III: K+ channel blockers
- IV: Ca++ channel blockers
- Miscellaneous
Drug used to treat hypertension
Antihypertensive
Pharmacological Classes of Antihypertensives
- Diuretics
- Beta-blockers and antiadrenergic drugs
- ACE inhibitors
- Calcium channel blockers
- Direct vasodilators
Drug used to reduce circulating blood volume by increasing the amount of urine
Diuretic
The stoppage of bleeding
Hemostasis
Drugs Used to Treat Thrombi (Hemostatic Agents)
- Antiplatelets
- Anticoagulants
- Fibrinolytics
Drug that decreases the formation of platelet plugs
Antiplatelet
Drug that interrupts the clotting cascade
Anticoagulant
Drug that acts directly on thrombi to break them down; also called thrombolytic
Fibrinolytic
Drug used to treat high blood cholesterol
Antihyperlipidemic
Mediator released from mast cells upon contact with allergens
Leukotriene
Medication that arrests the effects of histamine by blocking its receptors
Antihistamine
An endogenous substance that affects a wide variety of organ systems
Histamine
Medication that suppresses the stimulus to cough in the central nervous system
Antitussive
Medication intended to increase the productivity of cough
Expectorant
Medication intended to make mucus more watery
Mucolytic
Main Indications for Gastrointestinal Drug Therapy
- Peptic ulcers
- Constipation
- Diarrhea and emesis
- Digestion
Alkalotic compound used to increase the gastric environment's pH
Antacid
Medication used to decrease stool's firmness and increase its water content
Laxative
Categories of Laxatives
- Bulk-forming
- Stimulant
- Osmotic
- Surfactant
Substance that decreases surface tension
Surfactant
Medication used to prevent vomiting
Antiemetic
Substance that decreases blood glucose level
Insulin
Substance that increases blood glucose level
Glucagon
Drug used to treat cancer
Antineoplastic agent
Agent that kills or decreases the growth of bacteria
Antibiotic
Disease-causing organism
Pathogen
The body's ability to respond to the presence of a pathogen
Immunity
Solution containing whole antibodies for a specific pathogen
Serum
Solution containing a modified pathogen that does not actually cause disease but still stimulates the development of antibodies specific to it
Vaccine