Ch 17 (test 3) Flashcards
psychotherapeutics
treatment of emotional and mental disorders.
Psychotropic drug is a treatment option when…
a patient is not able to cope with environment to perform activities of daily living and to interact socially with others.
Anti-depressant agents
given for clinical depression to increase concentration of catecholamines in the brain.
clinical depression
an affective disorder presented by an over-whelming sadness despair, hopelessness that is inappropriate to the events. (major depression).
major depression signs
lack of energy sleep disorders no appetite limited libido inability to do activities of daily living
Biogenic-amine theory of depression
clinical depression occurs when there is an imbalance of certain catecholamines at the adrenergic receptor site in the brain (norepinephrine, serotonin and dopamine)
Selective Serotonin Reuptake Inhibitors (SSRI’s)
- Newer antidepressant with fewer side effects but not quite as effective (affects only serotonin)
- First line
- takes 4-6 weeks to kick in.
- Side effects include: insomnia, sexual dysfunction, and weight gain.
Examples of SSRI’s
Prozac
Paxil
Zoloft
TCA’s (tricyclic antidepressants)
- prevents reuptake of neurotransmitters, letting them increase concentration at the receptor site.
- 2nd line
- also used for neuropathic pain and insomnia
amitriptyline (Elavil)
- TCA
- don’t take with MAOI’s
- pregnancy category D
- caution w/ cardiac disease, psychosis, seizure history
- SE: CNS increases anxiety and H/A
CARDIAC:tachy cardia, ortho hypotension
GI: weight gain, constipation, dry mouth
OVERDOSE: use charcoal and na bicarb.
MAOI’s monoamine oxidase inhibitors
- inhibits MAOs to prevent breakdown of norepinephrine and serotonin
- highly effective but requires diet changes
- SE: dizziness and insomnia
- Hypertensive crisis: occurs w/ tyramine
Tyramine
ages cheeses, smoke/pickled meats, yeast, red wines, lava beans, beer, avocados.
Examples of MAOI’s
Nardil, selegiline transdermal patch (Emsam)
Signs of MAOI tyramine interaction
- severe occipital headache
- facial flushing and sweating
- N&V
- Chest pain and palpitations
- photophobia
- increased systolic and diastolic bp
- nifedipine (Procardia) given to decrease bp and counteract interaction.
Selegiline patch
- 24 hours
- can have some tyramine
- avoid heat exposure
newest antidepresant drugs
- Lexapro
- Cymbalta
- Wellbutrin (also for cigarette cessation)
- Zyban
Antipsychotic agents
drugs used to treat psychosis
psychosis
a biochemical imbalance that produces thought disorders.
Schitzophrenia
most common psychotic disorder in which the pt has delusion, hallucinations and inappropriate responses to stimuli. NOT a cure.
Anti-psychotic drugs/ neuroleptic agents.
dopamine receptor blockers so that the post-synaptic neurons cannot be stimulated by dopamine.
ALso depress the Reticular activating system
Examples of anti-psychotic drugs
Thorazine, Haldol, Navane, Abilify, Loxitane, Clozaril
SE of anti- psychotic drugs
Chemical restraints/sedation weight gain change urine color (pink/reddish brown) bone marrow suppression grapefruit juice; increases drug effectiveness slowing metabolation of the drug.
Extrapyramidal effects
permanent side effects of anti-psychotic drugs
- pseudoparkinsonism
- dystonia
- akathesia
- tardive dyskinesia
NMS Neuroleptic malignant syndrome
life threatening response with prolonged use to antipsychotic drugs
- tachycardia
- decreased LOC
- high fever
- incontinence
- diaphoresis
- extrapyramidial effects