Unit 2 Instructors Notes Flashcards
Which of the following is a type of methylxanthine:
A. Theobromine B. Theophylline C. Caffeine D. All of these E. A and C, but not B
D) All of these
Caffeine - Pharmocokinetics
1) Administration
2) Distribution
3) Biotransformation
4) Excretion
*Commonly Administered:
-Orally
Primary site of Action:
-Brain
Biotransformation from liver enzymes Excreted primarily through Kidneys/Urine
Which of the following is true of caffeine?
A. Effects include vasodilation
B. Half life is approximately 2-4 hours
C. Cannot cross the blood-brain barrier
D. Biotransformation occurs primarily in the lungs
B. Half life is approximately 2-4 hours
Caffeine-Neuropharmocology
- The neurotransmitter that caffeine impacts & results in increased alertness is Adenosine
- By acting as an Antagonist
Caffeine Effects Vs. Withdrawal Effects
- Increased heart rate Vs. Decreased heart rate
- Decreased Sleep Vs. Increased sleep
- Increased alertness Vs. Decreased alertness
- Increased Endurance Vs. Decreased athletic performance
- Vasoconstriction Vs. Vasodilation
The mechanism of caffeine tolerance Dr. Blakely describes is called:
A.Upregulation-Cell creates additional adenosine receptors
B. Depot binding
C. Reuptake inhibition D.Compensatory reaction
A.Upregulation-Cell creates additional adenosine receptors
Schizophrenia-Symptoms & Theory
Theories:
- Too much Dopamine (oldest theory)
- Too much Dopamine in some areas; too little in others
- Positive Symptoms:
- Hallucinations
- Delusions
- Negative Symptoms:
- Flat effect
- Anhedonia (loss pf pleasure from preferred activities)
- Avolition (Lack of goal-directed Bx)
Antipsychotic Classification
1st) Typical
1st) Generation/Typical
Typically dopamine antagonist E.g.Thorazine, Mellaril. Haldol, Prolixin
Antipsychotic Classification
2nd Atypical
2nd Gen/Atypical
E.g. Risperdal, Zyprexa, Clozaril
Antipsychotic Classification
3rd Atypical
3rd Generation/Atypical
May Function as a dopamine partial agonist E.g. Abilify
Another common route of administration for antipsychotics is:
A. iv
B.im-Stands for?
C. inh
D. supp.
B.im-Stands for?
Intramuscular
The kinetics of antipsychotics can be characterized as:
A. Having a consistent half-life of 6 hours regardless of type of antipsychotic
B. Having a wide range of half-life lengths dependent on prescription
C. Neither of these, antipsychotics have 0-order kinetics
B. Having a wide range of half-life lengths dependent on prescription
Akathisia is characterized by:
A. High fever-NMS B. Inability to stay still C. Tongue-rolling and lip-smacking- Tardive dyskinesia D. Involuntary clinching of the muscles- Dystonia
B. Inability to stay still
Difference Between:
- Antianxiety
- Sedative-Hypnotics
- Generic Types:
- Antianxiety: Typically Longer acting e.g. Valium, Librium, Xanax (Benzos)
- Sedative-Hypnotics: Typically Shorter acting e.g. Halcion, Restoril (Also Benzos) Ambien (Z-drugs)
- Generic Types: Barbiturates, Benzos, Z-drugs
The effects of antianxiety medications are often due to the drugs:
A. Acting as a serotonin agonist
B. Increasing GABA reuptake
C. Facilitating dopamine
D. Facilitating GABA
D) Facilitating GABA
Antianxiety Effects Vs. Withdrawal Effects
- Withdrawal symptoms can Vary based on: Specific drug, immediacy of drug reduction, dose
- Tolerance is: Likely; Part of abuse potential -Acute (first dose) or Chronic (from long-term use)
- Decreased anxiety symptoms - Increased anxiety symptoms
- Decreased muscle tension - Increased muscle tension
- Decreased seizure activity - Increased seizure activity
The lethality risk of benzodiazepines is:
A. Typically high
B. Typically low
B.Typically low-However if taken in combination with high doses of alcohol or barbiturates more likely to be fatal
Besides lethality, antianxiety/sedative-hypnotics carry risks to newborns as they:
A. Cross the placental barrier
B. Decrease lactation in women
C. Are overly prescribed to infants
D. Should not be mixed with alcohol
A. Cross the placental barrier
Geller & Seifter Procedure
This is a screening procedure for antianxiety properties
*Tests for punishment-abolishing
effects
Multiple schedule arrangement
What are some characteristics of depression that Dr. Blakely lists?
- Depressed mood through most/large portions of day
- Increase or decrease in appetite
- Increase or decrease in weight
- Increase or decrease in sleep (perhaps fatigue)
- Increase in negative self-statements
- Decreased activity enjoyment
- Feelings of worthlessness
- Inappropriate guilt
Kinds of Antidepressants
1st Generation-Tricyclic/MOAI
1) Gen-Tricyclic/MOAI
Monoamine (e.g. dopamine, seratonin, norepinephrine) Ocidase inhibitor e.g. Euphozid, Parnate, Marplan
Kinds of Antidepressants
2nd Generation-SSRI
Selective serotonin reuptake inhibitors e.g. Prozac, Zoloft
Kinds of Antidepressants
3rd Generation - SNRI
-Selective norepinephrine reuptake inhibitors e.g. Effexor, Wellbutrin
Serotonin syndrome symptoms may include which of the following:
A. Extrapyramidal signs and symptoms B. Agitation C. Delirium D. B and C, but not A E. All of these
E. All of these-Serotonin syndrome is more likely when: Someone is on multiple antidepressants or switches to higher dose