• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/123

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

123 Cards in this Set

  • Front
  • Back
schizo- lifetime incidence
onset (age)
gender
lifetime incidence- 1%

onset- late adolescence/early adulthood- earlier in males

new studies show males > females
etiology of schizo (3)
Genetic Susceptibility (multiple alleles)- risk increased if have first degree relative with it
environmental (infection in fetus, hypoxia, leads to abnormal neuron migration), maybe SCZ has something to do with dendrite pruning since this usually occurs by midadolescence
schizo course of illness (most deterioration when?) and tx efficacy vs. timing (2)

maintenance therapy efficacy
 Most deterioration in psychosocial functioning
occurs within the first 5 years- Early treatment predicts better long-term
outcomes
 Majority of patients experience 1+ relapse: Antipsychotic maintenance therapy
significantly reduces the risk of relapse at 1 yr
ideal schizo case
Initial psychotic episode is quickly detected and treated and further
illness is prevented by prophylactic treatment
chronic schizo relapsing case
Chronic relapsing condition with each psychotic
exposure decreasing global function
Schizo and suicide correlation (% of pt that do it, cause of death)
 ~ 30%-40% of people with schizophrenia attempt
suicide at some point in their lifetime
 Suicide is the most common cause of premature
death among patients with schizophrenia
6 risk factors for suicide in SCZ patients
 Symptoms of depression
 Hallucinations (voices telling patient to commit suicide)
 Substance abuse
 Being unmarried
 Not having a job
 Recent discharge from the hospital
definition of psychosis (3)
A severe mental disturbance that involves a
profound misinterpretation of perceptions or
loss of contact with reality
 Interferes with the ability to interact
appropriately with others or with the
environment
 Psychotic features/symptoms are present in
various disorders (including mood disorders)
definition of psychotic disorder
Include psychotic symptoms as a prominent
aspect of their presentation
clinical presentation of schizo: 3 types of sx
Negative- taking away something
Positive- adding somthing
Cognitive- inability to make decision, decrease mental functionality
positive sx =
psychotic sx
positive sx consist of (4)

4 types of delusions
 Hallucinations
 Delusions- fixed false beliefs about things e.g. Persecutory (paranoia), Grandiose, Referential (books/tv sending messages to them), Bizarre (weird **** that can't be true)
 Disorganized speech
 Grossly disorganized or catatonic behavior
Negative symptoms (5)
 Affective flattening- impaired outward display of emotions
 Alogia (Poverty of
Speech)- Decreased speech
fluency
 Avolition- Lack of motivation or
“drive”
 Anhedonia- Loss of interest or
pleasure
 Asociality- lacking the capacity
for social interaction
6 cognitive symptoms of schizo
 Poor concentration
 Poor abstraction (can't see deeper meaning in things)
 Memory disturbances
 Inability to plan
 Impaired decision making
 Difficulty executing tasks
DSM-IV dx criteria for schizo (sx and durations) (3 portions/criteria)
Two or more of the following symptoms, each
persisting for significant portion of at least a 1-
month period (unless treated):
 Delusions
 Hallucinations
 Disorganized speech
 Grossly disorganized or catatonic behavior
 Negative symptoms

Social/occupational dysfunction:
 For a significant portion of the time since onset of the
disorder, one or more major areas of functioning
such as work, interpersonal relations, or self-care are
significantly below the level prior to onset

Continuous signs of the disorder for at least 6 months
 Must include 1+ month of acute symptoms (unless
successfully treated) and may include prodromal or
residual periods
DSM IV: Schizoaffective disorder (3)
 Major Depressive Episode, Manic Episode, or
Mixed Episode concurrent with acute
symptoms of Schizophrenia
 During same period of illness, there have been delusions or hallucinations 2+ weeks in absence of prominent mood symptoms (euthymic)- basically must be 2+ weeks where patient has psychotic sx but no mood disorder
 Mood episode symptoms present for a "substantial" portion of the illness duration
CNS diseases to r/o to dx schizo (6)
 Huntington’s Disease
 Multiple Sclerosis
 Epilepsy
 Migraines
 CNS infections
 Deafness
metabolic disorders to r/o for schizo (3)
 Hypoxia
 Hypercarbia
 Hypoglycemia
endocrine disorders that can cause psychotic disorders (3)
 Hyper/Hypothyroidism
 Hyper/Hypoparathyroidism
 Cushing’s syndrome
 Addison’s disease
3 misc. disorders that can cause psychotic sx (3)
 Fluid/electrolyte
imbalances
 Hepatic or renal disease
 Systemic lupus
erythematosis
substances associated with psychotic sx (9)
 Alcohol
 Amphetamines
 THC
 Cocaine
 PCP
 LSD
 Inhalants
 Opioids
 Sedative/Hypnotics
substances that cause psychosis with withdrawal (2)
 Alcohol
 Sedative/Hypnotics
4 DA pathways
mesolimbic
mesocortical
nigrostriatal
tuberoinfundibular
4 DA pathways and where they go/what they do
mesolimbic pathway- brain stem to limbic
mesocortical- brain stem to cortex
nigrostriatal- sub nigra to striatum (motor- EPS sx)
Tuberoinfundibular- hypothalamus to pituitary- inhibits prolactin release
Dopamine hypothesis (2)
excess of DA activity in mesolimbic: positive sx
deficiency of DA in mesocortical: negative sx/cognitive sx
DA antagonism: tx efficacy and cause of adverse effects (4)
DA inhibition in mesolimbic is good- but if we block too much DA and it affects other areas in brain- e.g. EPS in nigrostriatal, hyperprolactinemia (tuberoinfundibular)
Minimal improvement of negative sx in mesocortical
Ideal Antipsychotic for schizo properties (3)
 Decrease DA activity in the mesolimbic
pathway to treat positive symptoms
 Increase DA activity in the mesocortical
pathway to treat negative symptoms
 Maintain adequate DA activity in the nigrostriatal and tuberoinfundibular pathways
to minimize side effects
Antipsychotic classes
first gen antipsychs
second gen antipsychs
first gen antipsychs- how they work
and what types of drug (3)
primarily work by blocking D2 receptor

are conventional agents, neuroleptics or typical antipsychotics
second gen antipsychs- type of drug
MoA
 Atypical antipsychotics
 Dopamine and
serotonin blockade (less EPS sx...not sure why. i think serotonin block counters it). IDK this paper says that it's because the binding to D2 receptors is more transient/not as hard as dopamine
comparison of antipsychotic pharmacology
chart - did not enter
First gen antipsychotics- 2 categories
phenothiazines (-zines)
non-phenothiazines
phenothiazines (5)
 Chlorpromazine (Thorazine®)
 Thioridazine (Mellaril®)
 Perphenazine (Trilafon®)
 Trifluoperazine (Stelazine®)
 Fluphenazine (Prolixin®)
non-phenothiazines (5)
 Thiothixene (Navane®)
 Haloperidol (Haldol®)
 Loxapine (Loxitane®)
 Molindone (Moban®)
 Pimozide (Orap®) – primarily for Tourette syndrome
First gen antipsychotic potency: high potency drugs properties (2)
 More potent D2 antagonism (more EPS)
 Less anticholinergic, alpha-antagonism, sedation
examples of high potency antipsychotics (5)
Haloperidol, fluphenazine, thiothixene,
trifluoperazine, pimozide
Moderate Potency FG antipsychotic property
Moderate D2 antagonism as well as receptor selectivity- less...AE? (litsen again)
relative potency- highest (4)

mod (3)

least (2)
least potent- chlorpromazine, thioridazine (phenothiazines)

moderate- Perphenazine, loxapine, molindone

potent-this was on a diff slide
FGA oral dosing/max dose
what to take away: low potency agent like (chlorpromazine- you need like hundreds of mg to get an effect)

know the relative...like..."ranges". in the tens or hundreds

won't ask "is 30 mg in range for X drug
Haloperidol max dose and usual dosage range
100 mg is MAX- people used to use these high doses regularly


nowadays very rare to use more than 20 mg of haloperidol due to dose related risk of EPS (range is 2-20)
Second gen antipsychotics (10)
Clozapine
Risperidone
Olanzapine
Quetiapine
Ziprasidone
ripiprazole (abilify)
paliperidone
iloperidone
asenapine
lurasidone
D2 receptor occupancy and EPS/prolectin elevation
no subject with D2 occupancy below 78% showed any EPS

72% for prolactin
What haloperidol D2 receptor study told us
high potency typical antipsychotic
response is possible (but not probable) without
EPS or prolactin elevation with appropriate D2
occupancy, however therapeutic window is narrow and variable
Functional interactions b/t 5HT and DA
5-HT disinhibition of DA normally- but if you block this then DA can release normally in nigrostriatum
D2/5HT2 occupancy of risperidone (and other second gens)
...looks like it had almost 100% binding of 5HT2A receptors
Exception to 5HT2/D2 effects in second gen antipsychotics (2)
Clozapine- advantage- inability to occupy > 70% of D2 binding profile (saturation even at higher doses) - so not much EPS

Quetiapine is similar
missed a few slides due to computer dying

time course of response to antipsychotics (4 steps)
1-2 weeks- decreased aggression/hostility/normal sleep/appetite

2-3 weeks- improve socialization, mood

2-6 weeks- improvement on psychotic sx "though disorders"

residual sx - fixed delusions or hallucinations
Reasons for nonadherence to antipsychs (5)
side effects (highest)
didn't like it
thought they didn't need it when they were doing well
didn't work
forgot to take
Clinical consequences of D2 blockade (2)
hyperprolactinemia
drug induced movement disorders
hyperprolactinemia consequences (6)
 Amenorrhea
 Dysmenorrhea
 Gynecomastia
 Lactation
 Sexual dysfunction
 Osteoporosis?
hyperprolactinemia sx more common with what drugs (3)
increased risk with FGAs risperidone and paliperidone
drug induced mvmt (2 types and define them, kind of)
- Extrapyramidal Symptoms (EPS) includes...
 Dystonia
 Akathisia
 Pseudoparkinsonism
-Tardive Dyskinesia (TD)
Dystonia characterized by... (6)
sustained muscle contractions
 Torticollis
 Protrusion or twisting of the tongue
 Trismus
 Blepharospasm
 Oculogyric crisis- eyes get rolled up into back of head
 Laryngospasm
acute dystonia sx onset
Generally occurs within hours to days of
starting antipsychotic or increasing dose
risk factors for dystonia (4)
 Young Patients
 Males (maybe because we tend to give young muscular...male patients higher doses)
 High Potency FGAs
 Previous Dystonic Reaction
tx for dystonia
preferred is anticholinergics (benadryl or benztropine)- due to recipricol reactions between Ach and DA. if ineffective or not tolerated can use benzos

Ach suppresses mvmt so if you block it, you get opposite effect.
missed slides up until tx of induced akathisia
--
tx of akathisia (2 things to do to current regiment, 3 meds to add)
 Lower the antipsychotic dose
 Switch to an SGA
 Add medication for akathisia- beta blocker (propranolol, nadolol, metoprolol) OR benzo but avoid if substance abuse ( i think beta blockers better).

Anticholinergic not effective
Pseudoparkinsonism (drug induced) sx (3)
similar sx to parkinson's
bradykinesia
resting tremor
cogwheel type rigidity
Pseudoparkinsonism incidence and in what drugs
occurs in 10-40% of pt treated with FGAs
pseudoparkinsonism onset
Onset typically 1-3 months
after antipsychotic initiated
 May see as early as 1 week
risk factors of pseudoparkinsonism (4)
 High potency FGAs
 High dose antipsychotics
 Over 40 years of age
 Females
second generation antipsychotics- drugs that cause it more (besides FGAs)
Of SGAs, risperidone & paliperidone have higher
risk, particularly at higher doses
tx of pseudoparkinsonism (3)
 Lower the dose of antipsychotic
 Switch to an SGA
 Add antiparkinsonian medication (anticholinergics- preferred- benztropine/trihexypenidyl) or amantidine is alternative
clinical characteristics of tardive dyskinesia (2)
 Abnormal, involuntary movements that are
potentially irreversible
 Movements are usually choreic (jerky), athetoid (wavy) or
choreoathetoid (combo): May include chewing, tongue protrusion, lip
smacking, puckering, involuntary movements of the
trunk or limbs, etc.
onset of TD
may be 3 mo to years after tx
TD: why is the onset so long?
DA hypersensitivity due to long term blockade- something happens in brain that tries to compensate for blockade and gives receptors that are hypersensitive
risk factors for tardive dyskinesia (8)
 Age- Elderly (3-5X)
 Long duration of treatment
 FGAs > SGAs
 Gender: Female
 Race: African Americans (2X)
 Affective (Mood) disorders
 Refractory Psychosis
 Early EPS
TD in FGA vs. SGA (3)
 Difficult to assess due to short duration of trials and 10 years of FGAs on market until TD recognized as a
problem so most everyone had been exposed to FGA at some point
 True risk with SGAs limited due to inability to tease out those not exposed to FGAs
 Reported mean annual incidence of TD
(excluding elderly)
-5.4% with haloperidol
-0.8% with SGAs
tx?? of TD (more like how to manage) (3)

antipsychotic drug of choice for severe TD
best tx if PREVENTION- monitor with AIMS continuously for ANY emergence of mvmts

d/c AP if possible- to prevent from getting worse (may not get better) ALTHOUGH sometimes you may not be able to d/c successfully because taking them off the blocker can sometimes make TD worse (more DA hitting receptors)
if cna't d/c- switch to SGA or clozapine (drug of choice if severe TD)
agents that have been studied for TD and results (4)
vit E
melatonin
Acetylcholinesterase inhibitors
branched chain amino acids

not rec'd; no evidence
metabolic risk in schizophrenia (primary concern with SGAs) (3)
already increased risk with schizo disease state due to:

prevalence of smoking (nicotine may stimulate cognition so may be self medicating), diabetes, CV disease
higher risk of obesity due to ****** nutritional habits and sedentary lifestyle

meds can exacerbate these issues
antipsychotics and weight gain (high/moderate/low risk)
clozapine is the worst
olanzapine
then quetiapine/risperidone (moderate weight effects)
low risk: abilify, ziprazidone? lorasidone?
Antipsychotics- other metabolic abnormalities (2)
lipid abnormalities- nt sure if related to weight gain
glucose dysregulation/diabetes- even without weight gain
drugs that cause the most lipid issues and the least (2 ea)
Clozapine and olanzapine are reported to cause the
most weight gain and also have the most reports
regarding increased triglyceride levels
 Aripiprazole and ziprasidone have minimal to no
effect on weight & lipids
onset of AP diabetes
 Most cases of new onset diabetes developed
within 6 months after starting the antipsychotic
huge chart of metabolic stuff

best and worst
olanzapine/clozapine- worst in temrs of metabolic ****

asenapine, aripriprazole, ziprasidone, lurasidone best
SGAs; metabolic monitoring: baseline (6)
personal/family hx
weight
waist circ
BP
fasting plasma glucose
fasting lipid profile
SGAs: weight monitoring freq
monthly for first 3 months then quarterly
SGAs waist circ monitoring freq
yearly
SGAs BP monitoring; when to monitor
at 3 months (and that's it?)
glucose and lipid monitoring
glucose: baseline, 3 mo, yearly
lipids: baseline, 3 mo, q5 years
QTc prolongation- warnings on which drugs (2 SGA and 3 FGA)
thioridazine- BBW
and mesoridazine (removed- active metabolite of thiridazine)

these were FGAs

and haloperidol IV at high doses-->ECG monitoring if IV
SGAs: ziprasidone and iloperidone- labeled warning
comparative QTc prolonging effects for SGAs- idk listen again
thioridazine

oral haloperidol NBD
and other SGAs also
lurazidone actually has low QTc prolongation even though it looks high on chart

in particular abilify has really low risk-good choice in pt with long qtc
normal QTc
360-440 ms (higher in women by 20 ms)
risk factors for QTc prolongation (5)
Cardiac disease, electrolyte imbalance, bradycardia,
elderly, on concomitant QTc-prolonging drugs
for pt with risk factors for QTc what must you do before giving antipsychotics

when to d/c them and how to deal with it in terms of further tx of their psych issues (2)
 Recommend baseline ECG for at-risk patients
 Discontinue antipsychotics if QTc >500 msec
 Consider reinitiating therapy with lower risk agent
(e.g. aripiprazole, olanzapine??)
possible side effects based on pharmacology for APs (4)
Anticholinergic side effects- specific ones on slide
H1 antagonism- sedation/weight
5-HT2c antagonism - weight gain
 Alpha-1 antagonsim
 Orthostatic hypotension, dizziness, sedation
most sedating

worst anticholinergic

(2)

most prolactin releasing (3)
--

clozapine worst for anticholinergic (well, all side effects that are not DA related)

chlorpromazine- also anticholinergic

Both are most sedating

haloperidol, CPZ, risperidone?? (
counseling points: which drugs must be taken with food and why (2)
ziprasidone and lurasidone

decrease in BA without food
counseling points: orthostasis- which drug and how to counter this
iloperidone
must titrate slowly (1 wk schedule)

CPZ, CLZ too????
counseling points: SL tablet
asenapine- should not eat or drink within 10 min of taking med
Clozapine benefits (3)
 Most effective antipsychotic
 Decreased risk of suicidal behavior & aggression
 Relatively low risk of EPS
Black box warnings for clozapine (4)
agranulocytosis, seizures,
myocarditis, orthostatic hypotension
4 AE of clozapine
 Constipation: can be severe and even life-threatening- usually started on bowel regimen too
 Sedation
 Adverse metabolic effects
 Sialorrhea (really awful drooling)- no dry mouth!!! hile clozapine is a muscarinic antagonist at the M1, M2, M3, and M5 receptors, clozapine is a full agonist at the M4 subset. Because M4 is highly expressed in the salivary gland, its M4 agonist activity is thought to be responsible for the hypersalivation
clozapine- it has so many side effects- what about efficacy?
clearly superior in reducing sx so still the best drug we have
Clozapine: Agranulocytosis incidence (2) post and premarketing
 Premarketing research incidence of 1-2%
 Postmarketing data indicates incidence only 0.38%
with 0.012% being fatal- maybe because we monitor so closely
monitoring for agranulocytosis/clozapine (4)
 WBC/ANC baseline and weekly x 6 months
 Then every 2 weeks x 6 months
 After 12 months patient can go to monthly monitoring if no drops in WBC/ANC
 Perform WBC/ANC for at least 4 weeks after discontinuation

(have to submit to national registry)
clozapine myocarditis- incidence and onset/sx
again, low incidence
usually occurs within 3 weeks of starting therapy
sx similar to CHF- fatigue, CP, fluid overload
clozapine seizures (2)
 All antipsychotics can lower seizure threshold;
seizure incidence 0.1-1.5%
 Clozapine associated with higher incidence than
other antipsychotics at usual therapeutic doses
clozapine seizures- how to avoid
titrate by doubling dose every few days when initiating
Neuroleptic malignant syndrome (NMS)- incidence
occurs in 0.5-1% pt on AP
NMS sx (6)
body temp increase
mental status changes
tachy
diaphoresis
labile BP
"lead pipe" rigidity
NMS- hard to distinguish from...

severity of this syndrome
tx options (3)
similar to serotonin syndrome
may be fatal if not tx and AP not d/ced
tx primarily supportive care, bromocriptine (D2 agonist?), dantrolene
Long acting decanoate antipsychotics- PO overlap required in...(2)

rec'd in...(2)
required in risperidone and aripriprazole

rec'd in haloperidol and fluphenazine
LAI options (6)
haloperidol
fluphenazine
risperidone
paliperidone
olanzapine
aripriprazole
risperidone LAI (2) what kind of technology, release profile and implications
 Microsphere technology
 Takes a long time to release...so Need to overlap with oral risperidone medication for 3 weeks (at least 2 injections before effects kick in)
paliperidone therapeutic advantage (3)
therapeutic advantage over risperdal and Consta

 No need for oral medication overlap
 Monthly vs. every 2 week injections
 No refrigeration or reconstitution needed
Olanzapine (zyprexa) LAI major issue

what is it
onset
risk mitigation strategy (2 things the pt has to do/can't do)
restrictions
post injection delirium sedation syndrome

 Symptoms of olanzapine overdose
 94% of reactions within 3 hrs of administration
 Risk Evaluation and Mitigation Strategy (REMS):
patients must be observed for 3 hrs after EVERY
injection; should not drive on day of injection
 Restricted distribution: prescriber, healthcare facility,
patient, and pharmacy must all be enrolled with
drug company
abilify LAI- oral overlap?

dose adjustments/metabolism issues (2)
need to overlap with oral med for 2 weeks
must be dose adjusted for presence of 2D6/3A4 inhibitors or in pt who are 2D6 oor metabolizers
avoid use with concomitant 3A4 inducers
important pharmacodynamic interactions of APs (3)
 Clozapine + carbamazepine = ↑ risk blood
dyscrasias
 Clozapine/iloperidone/quetiapine/
chlorpromazine + antiphypertensives = ↑ risk
orthostasis
 QTc prolongation- Ziprasidone, thioridazine, IV haloperidol, TCAs,
citalopram
metabolism pathways of atypical antipsychotics

3A4 (3)

2D6 (3)

no CYPs (2)

1A2- (3)
3A4- Q, ARI, LUR

2D6- ARI, RIS, ILO

no CYPS- PALI, ZIP

1A2- CLZ, OLAN, ASEN
Important PK interactions of antipsychotics: CYP1A2 interactions (inducers and inhibitors)
 Inducers: cigarette smoking, carbamazepine,
omeprazole (weak to moderate)
 Inhibitors: fluvoxamine, fluoxetine (moderate),
ciprofloxacin
omfg details of CYP1A2 mediated interactions of atypical psych meds-didn't really talk about
 Fluvoxamine + CLZ = ↑ CLZ level three- to four-fold
 Fluvoxamine + OLZ/ASEN = ↑ antipsychotic levels
 Fluoxetine + CLZ = ↑ CLZ level ≈ 50%
 Cigarette smoking + OLZ/CLZ = ↓ OLZ/CLZ levels
 CBZ + OLZ/CLZ = ↓ OLZ/CLZ levels
CYP2D6 mediated interactions (3) inhibitors; what listen again; more details on slide she didn't go over

additional substrates metabolized by 2D6 (2)
 Additional substrates that are also metabolized by 2D6?? idk: haloperidol, phenothiazines
 Inducers: none known
 Inhibitors: fluoxetine, paroxetine, bupropion
CYP3A4 mediated interactions

additional substrates (1)
inducers (3)
inhibitors (**** ton)
 Additional substrates: haloperidol
 Inducers: CBZ, OXC, phenytoin
 Inhibitors: nefazodone, ketaconazole, itraconazole,
ritonavir, erythromycin, clarithromycin, cimetidine,
grapefruit juice
avoid what drug with QTP- one she specifically mentioned
QTP + pneytoin = 5-fold increase in QTP CLEARANCE- significant-->avoid this combo
lurasidone CI with which drug(s)
strong 3A4 inhibitors
Pregnancy and APs- risk for teratogenicity is greatest when
 Risk of teratogenesis from medication is
greatest during embryogenesis (3rd-8th week
of gestation)
preferred APs in pregnancy (2)
 Haloperidol???

Clozapine is pregnancy category B, all others
are category C (except lurasidone is now cat B?)
 Generally more data with typical antipsychotics
AP risk/FDA alert for newborn
EPS and withdrawal sx in newborn- but still safer to use than to now use
AP in elderly- major issue (3)
Elderly patients with dementia related psychosis treated with antipsychotic drugs are at an increased risk of death compared to placebo

majority of deaths cauesd by CV and infectious (pneumo) reasons

SO- NO SAFE AP in elderly pt with dementia- in both FGA or SGA
akathisia risk factors (4)
 High potency FGAs
 Commonly reported with aripiprazole
 High doses
 Rapid dose escalation