Psychopharmacology Flashcards
Aricept (donepezil hydrochloride)
can be used in mild to moderate dementia to slow and temporarily reverse some of the cognitive decline associated with Dementia of the Alzheimer’s type
Antipsychotics
typical/traditional or atypical/novel; many end in “azine”; traditional treat positive symptoms more effectively than negative symptoms; novel generally effective for both positive and negative; all are to some extent dopamine antagonists
Neurolpetics
antipsychotic medications; block dopamine receptors
Thorazine
Typical/traditional antipsychotic
Chlorpromazine
Typical/traditional antipsychotic
Prolixin
Typical/traditional antipsychotic
Fluphenazine
Typical/traditional antipsychotic
Haldol
Typical/traditional antipsychotic
Haloperidol
Typical/traditional antipsychotic
Clozaril
atypical/novel antipsychotic; increased risk of agranulocytosis; usually only administered to those who have failed trials of others
Clozapine
atypical/novel antipsychotic; increased risk of agranulocytosis; usually only administered to those who have failed trials of others
Risperdal
atypical/novel antipsychotic
Risperidone
atypical/novel antipsychotic
Zyprexa
atypical/novel antipsychotic
Olanzapine
atypical/novel antipsychotic
Positive symptoms (schizophrenia)
hallucination, disorganized thinking, delusions
Negative symptoms (schizophrenia)
affective flattening, lack of motivation, poverty of speech
Depot neuroleptics
antipsychotics administered intramuscularly in doses that last 2-4 weeks; helpful for inconsistent compliance
Decanoate
added to antipsychotic name to indicate it was administered in depot form
Schizophrenia factors that correlate with better treatment outcome
-later age of onset
-acute onset
-good premorbid functioning
-anxiety or other affective symptoms (as opposed to emotional blunting)
-systematized and focused delusions
-precipitating factors
-married status
-family history of affective disorders
-no family history of schizophrenia
Other disorders antipsychotics are used to manage
Delusional Disorder; sometimes Delirium, Brief Psychotic Disorder, Tourette’s Disorder, and Autism/Pervasive Developmental Disabilities (to decrease oppositional behavior, emotional lability, and irritability); sometimes adjunct in PTSD or MDD; not first choice for dementia but can be used to reduce agitation, confusion, and sleep problems
Lower potency antipsychotic side effects
sedation, anticholinergic effects (confusion, memory loss, worsening mental function), orthostatic hypotension, and a lowering of the seizure threshold; weight gain (increased appetite, decreased activity), sexual dysfunction
Higher potency antipsychotic side effects
extrapyramidal symptoms; weight gain (increased appetite, decreased activity), sexual dysfunction
Anticholinergic effects
dry mouth, constipation, urinary hesitancy or retention, blurred vision, dry eyes, photophobia (sensitivity to light), nasal congestion, and confusion and decreased memory; antipsychotic side effect, typically diminish but do not completely disappear within first month of use
Orthostatic hypotension
dizziness and lightheadedness when standing up
Extrapyramidal symptoms (EPS)
movement-related symptoms; potentially most damaging side effects of antipsychotics; include dystonia, parkinsonism, akathisia; some treated with anticholinergic agents (ACAs), such as Cogentin (benztropine) and Artane (trihexy - phenidyl)
Dystonia
acute and painful muscle spasms of the neck, back, tongue, eyes, and/or larynx; usually pass within two weeks; extrapyramidal symptom
Parkinsonism
also called pseudoparkinsonism; mask-like face, shuffling gait, drooling, resting tremor, rigidity, and akinesia; persist through treatment; treated by lowering dose, switching drugs, or using an anticholinergic agent; extrapyramidal symptom
Akathasia
most prevalent side effect of antipsychotics; dysphoria as well as an internal sense of restlessness or agitation, a feeling of the “ jitters” or “fidgeting,” tapping of the feet, rocking backward or forward, and shifting weight when standing; may persist throughout treatment; helped by using propranolol (a beta-blocker), a benzodiazepine, or an anticholinergic agent
Neuroleptic malignant syndrome (NMS)
affects 1% of patients treated with antipsychotics, potentially lethal; severe muscle rigidity, altered consciousness, autonomic instability (heart rate, blood pressure), high fever; requires emergency medical treatment
Tardive dyskinesia
typical/traditional antipsychotics can cause; abnormal movements of the lips, tongue, jaw (e.g., frowning, blinking, rolling and protruding the tongue), limbs (rapid purposeless movements, tremors, knee tapping), and trunk (rocking, twisting, pelvic gyrations); generally arises after 6+ months, plateaus at 3-6 years; may be reversible; sometimes seen when dosage is lowered or terminated; best treated through prevention; neuroleptics most effective short-term treatment for TD; anticholinergic agents typically exacerbate; not associated with Clozaril
Agranulocytosis
potentially lethal side effect of Clozaril; a sudden drop in the granulocyte count, usually occurring within hours to 12 weeks of initial administration, and manifesting as a sore throat and high fever
Antipsychotic dependence/withdrawal/overdose
do not cause addiction, dependence, or tolerance; only withdrawal if immediately stop high dosage (GI distress, headaches, insomnia, nightmares); overdoses not lethal unless take 30-60 day supply at once, but more lethal in combination with other medications
Antidepressants
include tricyclics (TCAs), selective serotonin reuptake inhibitors (SSRIs), monoamine-oxidase inhibitors (MAOIs), and others; primary mechanism of action usually blocking reuptake of norepinephrine and/or serotonin
Elavil
tricyclic antidepressant
Amitryptyline
tricyclic antidepressant
Anafranil
tricyclic antidepressant
Clomipramine
tricyclic antidepressant
Tofranil
tricyclic antidepressant
Imipramine
tricyclic antidepressant
Prozac
SSRI antidepressant; fluoxetine
fluoxetine
SSRI antidepressant
Zoloft
SSRI antidepressant; sertraline
sertraline
SSRI antidepressant
Paxil
SSRI antidepressant
Paroxetine
SSRI antidepressant
Treatment for “typical depressions”
SSRIs typically have fewer and less distressing side effects and are first choice; all classes of antidepressants equally effective in treating “typical depressions”
Treatment for psychotic depression
best treated by tricyclics (TCAs) in combination with antipsychotic
Treatment for inpatient depression
severe inpatient depression usually best treated with tricyclics (TCAs)
Treatment for melancholic depression
usually best treated with tricyclics (TCAs)
Treatment for geriatric depression
usually best treated with tricyclics (TCAs)