CNS Meds: Depression & Psychosis Flashcards
(43 cards)
Describe the 4 treatment modalities for depression
- pharmacotherapy
- Cognitive behavioral therapy
- Electroconvulsive therapy (ECT)
when drugs & psychotherapy have not worked - Vagus nerve stimulation
only after treatment with at least 4 drugs has failed
Name 6 examples of SSRIs
- Paxil – Paroxetine
- Celexa – Citalopram
- Prozac – Fluoxetine
- Zoloft – Sertraline
- Luvox – Fluvoxamine
- Lexapro – Escitalopram
What are the indications of SSRIs?
Depression
Other mental disorders: OCD, PTSD, social anxiety disorder, panic disorder, eating disorder
PMS
Enuresis (involuntary urination)
Recognize the time that selective serotonin reuptake inhibitors (SSRIs) take to show their effects
Effects take 10-21 days
Specify 2 precautions that patients on SSRIs must take
- If they want to stop taking the medication, they should wean gradually.
- Take SSRIs with food at bedtime!
- We want to minimize anticholinergic effects (dry mouth, constipation, urinary retention, dilated pupils, blurred vision, increased HR)
- Take at bedtime unless sleep is disturbed
List 9 side effects of selective serotonin reuptake inhibitors (SSRIs)
- insomnia
- anxiety
- nervousness
- headache
- weight gain
- nausea
- GI distress
- dry mouth
- sexual dysfunction
Describe serotonin syndrome and identify the clinical features of serotonin syndrome
It is a rare adverse effect of SSRIs due to autonomic “instability”
Can be life threatening
Sweating, agitation, confusion, hyperreflexia, fever, tremor hallucination, seizures, coma
Name 2 alternative antidepressant drugs to SSRIs
- SNRIs (serotonin-norepinephrine)
Venlafaxine – Effexor - NDRIs (norepinephrine-dopamine)
Bupropion – Wellbutrin
***Bupropion is also used for smoking cessation!
Describe the mechanism of action of tricyclic antidepressants (TCAs)
TCAs block the neuronal reuptake of 2 monoamine transmitters:
NE and serotonin
Name 5 examples of TCAs
Amitriptyline – Elavil
Imipramine – Tofranil
Clomipramine – Anafranil
Nortriptyline – Aventyl
Amoxapine –Asendin
List 2 indications of TCAs
Depression
***Chronic pain: fibromyalgia, migraine, severe depression
TCAs can have sedative/hypnotic effect
List 10 side effects of tricyclic antidepressants (TCAs)
Sedation & Confusion
Orthostatic hypotension
Arrhythmias, cardiac toxicity
Weight gain
Anti-cholinergic effect
**especially for the elderly
**Take at bedtime to minimize side effects
Name 4 examples of monoamine oxidase inhibitors (MAOIs)
Isocarboxazid (Marplan)
Phenelzine (Nardil)
Tranylcypromine (Parnate)
Selegiline (Emsam)
Tips to remember:
“Take Pride in Shanghai” lol
List 3 examples of monoamine neurotransmitters
Norepinephrine
Serotonin
Dopamine
Discuss the effect of a patient consuming tyramine-rich foods while being treated with a monoamine oxidase inhibitor (MAOI)
MAOIs inhibit monoamine oxidase, so the body cannot get rid itself of excess NE
–> Raised level of NE
–> Hypertensive crisis (life-threatening increase in BP)
List the classic examples of tyramine-rich foods
Tyramine is commonly found in foods that are aged
- cheese
- smoked fish
- tofu
- protein extracts
- sauerkraut
- miso
There are more!!!
List 3 drug classes that are likely to lead to serotonin syndrome
SSRIs
MAOIs
MDMA (phenylethylamines)
List 2 drug interactions that will also cause serotonin syndrome
combine MAOIs with:
- opioids like meperidine
- tricyclic antidepressants (TCA)
List 4 indications of monoamine oxidase inhibitors (MAOIs)
- Depression
- Bulimia nervosa (eating disorder)
- Obsession-compulsive disorder
- Panic attacks
We do not see MAOIs often in practice, but MAOIs can work effectively for some patients with depression.
Recall the disorders for which mood stabilizers are indicated
They are often used in bipolar disorder, borderline personality disorder (Luka Yamano!!) , and schizophrenia.
List two types of mood stabilizers
- Lithium
- Anticonvulsants – treat epilepsy but can also act as mood stabilizers
Describe how lithium benefits patients with bipolar disorder
We use lithium to treat acute mania OR prevent future mania/depression
Recall how long lithium might take to exert a therapeutic effect
Onset of the effects to kick in: 5 - 7 days
Peak: 2-3 weeks after
Describe characteristics of borderline personality disorder and explain the role of lithium in the treatment
Borderline personality disorder: characterized by mood swings, impulsiveness, and intense fear of abandonment (getting alone)