Neuro System - Drugs to treat mental health disorders Flashcards
benzodiazepines prototype and other drug names
Diazepam (Valium) and Alprazolam (Xanax)
Others: lorazepam, clonazepam (Klonopin), midazolam (Versed)
Benzos EPA
enhance inhibitory effects of gamma-aminobutyric acid (GABA)
benzos administration
Alprazolam oral only, diazepam PO/IV: admin IV slowly/monitor IV site
benzos therapeutic uses
generalized anxiety disorder (GAD) and panic disorder
benzos ADRs
CNS depression, hypotension, tachycardia, respiratory depression, tolerance and physical dependence (especially with alprazolam)
- Overdose/toxicity: possibility life-threatening sedation, hypotension, respiratory depression, cardiac arrest
benzos contraindications and interactions
Pregnancy - teratogenic
Glaucoma
Respiratory and/or CNS depression
Concurrent use of CNS depressants
benzos RN intervention and client education
Monitor for withdrawal symptoms: insomnia, anxiety, tremors, diaphoresis, hypertension, seizures
Monitor for phlebitis
assess/monitor for falls
Regular vital signs
Do not stop abruptly
Assess CNS and resp depression
Antidote: Flumazenil (Anexate, Romaxicon)
Non-benzodiazepines/mics. Anxiolytic prototype
buspirone (BuSpar)
Non-benzos EPA
binds to serotonin and dopamine receptors, agonistic action on dopamine
Non-benzos admindstration
PO, give 2-4 weeks before tapering Benzodiazepines. Can take 2-4 weeks to take effect
non-benzos therapeutic use
short term treatment of GAD
non-benzos ADRs
paradoxical effects: insomnia, anxiety, restlessness, headache, dizziness, GENERALLY well tolerated
non-benzos contraindications and interactions
MAO inhibitors - HTN
Grapefruit juice, ketoconazole, erythromycin - inc. blood levels
non-benzos RN intervention and client education
Monitor for paradoxical effects
assess/monitor falls
Avoid contraindicated meds/grapefruit juice
*Does not cause sedation so no risk for abuse/dependence
Tricyclic Antidepressants (TCA) prototype and other drug names
Amitriptyline (Elavil)
Other: Imapramine (Torfranil), Nortriptyline (Aventyl)
TCA EPA
Block norepinephrine reuptake pump and serotonin reuptake pump in synaptic space - boosts the availability of serotonin, norepinephrine, acetylcholine, dopamine
TCA administration
admin PO at bedtime due to sedative effects. Takes several weeks to take effect
TCA therapeutic use
treatment of major depression. 2nd line drug
TCA ADRs
MANY. Anticholinergic effects; sedation, inc risk for suicide (child/adolescent); abrupt discontinuation can cause withdrawal (anxiety, headache, muscle pain, nausea); high risk for overdose (life-threatening dysrhythmias, confusion, seizure
TCA contraindications and interactions
Avoid use of MAOIs
Avoid anticholinergics
Avoid CNS depressants
Cardiac dysrhthmias
Seizure d/o
Recent MI
TCA RN intervention and client education
Give at bedtime
Monitor orthostatic VS
Monitor for increases in depression and suicidal ideation
Initiate suicide precautions when appropriate
Taper the drug over 2 weeks to prevent or minimize withdrawl
Assure that clients have no more than a 1 week supply of the drug
SSRIs Prototype and other drugs
Fluoxetine (Prozac)
others: citalopram (Celexa), escitalopram (Lexapro), paroxetine (Paxil), sertraline (Zoloft)
SSRIs EPA
block reuptake of serotonin - strengthened transmission of serotonin at serotonergic synapses
SSRIs administration
admin PO in morning due to CNS excitation. Takes 4-6 weeks to take effect
SSRIs therapeutic uses
many indications! Depression, anxiety, OCD, bulimia nervosa, PMDD
SSRIs ADRs
insomnia, nervousness, sexual dysfunction, weight gain, inc risk for GI bleeding, hyponatremia (older adults and those taking diuretics), increased fisk for suicidal ideation (children and young adults), serotonin syndrome
*Serotonin syndrome: HTN crisis, hyperpyrexia, agitation - coma, muscle rigidity, seizure
SSRIs contraindications and interactions
MAOIs
St johns wort
Ibuprofen
May decrease glucose control in clients w/ DM
SSRIs RN interactions and client education
Monitor for insomnia, anxiety, HA
Monitor for decreased libido and/or impotence
Monitor weight gain
Monitor periodic sodium levels
Monitor for inc depression or suicidal ideation
Monitor for s/sx serotonin syndrome
Do not stop abruptly
Notify the provider if you develop persistent HA