Psychopharmacology Flashcards
Depressive disorders are multi-factorial. What are some of those factors?
Genetics
NT changes
Altered neuroendocrine function
Psychosocial factors
Methohexital helps facilitate
Seizures
5-HT3 is associated with
Anti-emetics
5-HT outside the CNS can cause
GI Motility
PLT Aggregation
Vascular Tone
Inflammatory Response
Henatopoiesis
Genital Arousal
Physiological effects of Serotonin include
Social
Affective
Cognition
5- HT 1A is
Inhibitory
Regulates serotonergic neuronal activity
Affects neurogenic effects of antidepressants
5- HT 2A is
Excitatory
Regulates cognition, attention, working memory revenant to psychosis
Implicates in serotonin syndrome
5 HT 2A is antagonized by
2nd generation atypical antipsychotics
5 HT 2A agonist is by
Hallucinogens
Which serotonin receptor is targeted by anesthesia?
5HT3
Which serotonin receptor regulates N/V and beneficial target of psychotropic drugs?
5HT3
Common SSRIs include?
(Shay Ford Can Play)
Sertraline
Fluoxetine
Citalopram
Paroxetine
SSRIs most commonly treat
Mild-Moderate depression
Panic
OCD
Phobias
PTSD
Where do SSRIs work?
At the serotonin trip take transporter
MOA for SSRIs
Blockade of 5HT reuptake transporter, which increases synaptic serotonin
SSRIs will eventually cause
A down-regulation of serotonin receptors since they are overwhelmed by agonists
5HT 1A has what effects?
Antidepressant
Anxiolytic
5HT 2A has what effects
Anxiety
Insomnia
Sexual dysfunction
5 HT3 has what effects
Nausea
Headache
Most common side effects of SSRIs
Insomnia
Agitation
Headache
Nausea
Diarrhea
SSRIs can cause this in the elderly, women, & in CV disease
Hyponatremia
What is the black box warning with SSRIs?
Shouldn’t be used in children and adolescents
Can cause suicidal thoughts & behaviors
SSRIs can inhibit
CYP 450 (Fluoxetine), increasing plasma concentrations (warfarin, phenytoin, antiarrhythmics, beta blockers)
SSRI can cause this due to its effects on warfarin & increased anti platelet activity
Bleeding risk
Increases anticoagulant effect on warfarin (paroxetine,fluoxetine)
SSRI has this effect in the heart
Can prolong QT (citalopram & escitalopram)
Should SSRI be continued perioperatively?
YES
What happens if SSRI is stopped abruptly?
Can lead to Discontinuation Syndrome
major depressive episode
Dizzy
Parenthesis
Myalgias
Irritable
Insomnia
Visual Disturbances
What is serotonin syndrome?
Excessive CNS serotonergic activity
Phenylpiperidine opioids (fent & meperidine), ondansetron, metoclopramide, erythromycin, metronidazole should all be
Used in caution since there’s a risk of Serotonin Syndrome
Serotonin syndrome symptoms include
Tachycardia
HTN
Hyperthermia
Tachypnea
Diaphoresis
HOTN
What are the neuromuscular abnormalities of Serotonin Syndrome
Hyperreflexia
Tremors
Myoclonus
Trismus
Muscle rigidity
Serotonin syndrome can cause what mental status changes?
Restlessness
Agitation
Visual Hallucinations
Disoriented
Confusion
Seizures
Coma
What does SNRI stand for?
Serotonin Norepinephrine Reuptake Inhibitors
Common SNRI drugs are
Venlafaxine
Duloxetine
Desvenlafaxine
SNRIs can be what type of therapy?
1st or 2nd line
SNRIs can be used to treat
Depressions
Anxiety
Chronic Pain
MOA of SNRI
Blockade of 5HT & NE reuptake transporters
Increasing synaptic levels of serotonin & NE
MOST selective for NE reuptake inhibition
SNRI adverse effects include
HTN
Inhibition of CYP 2D6 enzymes
Common TCAs include
Amitriptyline
Nortriptyline
Imipramine
TCAs treat
MDD
Chronic Pain Syndromes
OCD
TCAs affect what Neuro chemical system?
Serotonin
NE
Histamine
ACh
MOA for TCA
Inhibit 5 HT & NE reuptake transporters
TCAs can causes a depletion in
Catecholamines, so use Ketamine & Ephedrine with caution since they also release catecholamines
What happens if TCA and ketamine/ephedrine are given together?
CV collapse
TCA receptor antagonism include
5HT 2A
Alpha 1
NMDA
H1 H2
mACh receptors
TCAs cause what common CNS side effect?
Anticholinergic
(Dry mouth, blurred vision, tachycardia, urinary retention, lieu’s, sedation, delirium risk with elderly)
TCAs cause what in pediatric population?
Lowers seizure threshold
TCA is toxic with MAOIs as it will cause
Hyperthermia
Seizure
Coma
TCAs can cause
Extrapyramidal symptoms & tremors
TCA CV side effects
Ortho HOTN
Increased HR
Widen QRS
Inverted T wave
QT prolongation
Slowed AV conduction
Enhanced cardiac depressant effects of anesthesia
Characteristics of TCA overdose
Rapid
Fatal
Agitation, seizures
Cardio respiratory & Neuro depression
How do you treat TCA overdose?
Treat seizure with Diazepam or phenytoin
Treat dysthymias with lidocaine & sodium bicarbonate
Treat HOTN with IVF, sympathomimetics, & inotropes
TCAs will _________anesthetic requirements
Increase
TCAs will cause a/an_________response to Anticholinergic s like________ & ________as it passes the BBB
Exaggerated; Atropine; Scopolamine,
(Will place the patient at risk for delirium & confusion)
TCAs will cause a/an________response to indirect acting vasopressin’s & SNS stimulation
Exaggerated
(Should use smaller doses or direct acting vasopressors)
TCAs will cause a/an________ ventilators depressant effect on opioids
Exaggerated
( avoid pancuronium, ketamine, meperdine & epinephrine)
What should be used in small doses when treating HOTN due to TCAs?
Neosynephrine
Common MAOIs
Isocarboxazid
Phenelzine
Selegiline
Tranylcypromine
MAOIs treat
MDD
Panic
Parkinson’s
Phobias
Monoamine oxidase is a______enzyme & _____& _______ NE, E, DA, & 5 HT
Mitochondrial enzyme
Inactivates & Removes
Older MAOIs increase_______& are stable & ______complex with cerebral neuronal MAO leading to _____
NT Release
Irreversible; Inhibition
Newer MAOIs are ______ of monoamine oxidase
Reversible
MAOI side effects include
Ortho HOTN
Anticholinergic like effects
Paresthesia
Wt gain
Hepatitis
MAOIs cause this side effect that’s a crisis
Hyperadrenergic crisis related to tyramine in the diet
Causing HT , hyperpyrexia, CVA, & dysrhythmias
MAOIs can cause there 2 reactions
Type 1- excitatory
Type 2- inhibitory
In MAOI Type 1 (excitatory) reactions, what medications are safe to give
Morphine & hydromorphone
Type 1 excitatory reactions resemble
Serotonin Syndrome
Type 1 excitatory reactions happens with the administration of
Meperidine & dextromethorphan
Type 1 excitatory reactions will cause
Agitation
Headache
Muscle rigidity
Hyperpyrexia
High temp
AVOID GIVING PIPERDINES
Type 2 depressive reactions are reversed with
Naloxone
Type 2 depressive reactions will cause
Neurological depression & coma
Ventilators depression
MAOI of hepatic enzymes ________effects of all_______
Enhancing
Opioids
MAOIs given with indirect sympathomimetics such as ephedrine will_______
Place the patient at increased risk for fatal hypertensive crisis
What sympathomimetics is preferred over ephedrine?
Indirect acting Neosynephrine at smaller doses
(Has hypersensitivity, risking exaggerated effects)
What anesthetic medications should be avoided when a patient is taking MAOIs?
Ketamine
Ephedrine
Pancuronium
Epinephrine in LA mixtures
(MAOI) Phenezine decreased plasma cholinesterase levels, prolonging_____
NMB SCh
MAOIs cause a reduced metabolism of____, requiring a decrease in dose
Barbiturates
What anesthetic medications are okay to give when a patient in on MAOIs
Propofol
Etomidate
BZs
Inhalation agents
Anticholinergic
Trazadone, a monoamine, has the MOA of
STI activity
5 HT 2A antagonism
Alpha 1 antagonism
Side effects of Trazadone
Ortho HOTN
Dry mouth
Rare dysrhythmias
Buspirone is used to treat________
Mechanism________
May elevate___________
Generalized Anxiety
Partial agonist at 5 HT receptors
May elevate NE & DA levels
Mirtazapine/tetracycline have multimodal mechanisms such as
Alpha 2 antagonism ( increases NE)
5 HT 2A/3 antagonism
H1 antagonism