Depression Flashcards
What criteria is used to diagnose depression?
Diagnostic and Statistical Manual of Mental Disorders, 5th Edition
What is the most commonly used depression assessment scale?
Hamilton Depression Rating Scale (HDRS) or (Ham-D Rating Scale)
What are s/sx of depression?
- Mood
- Sleep-more or less
- Interest/pleasure-less
- Guilt/worthlessness
- Energy-less
- Concentration-less
- Appetite- more or less
- Psychomotor agitation or retardation
- Suicidal ideation
What is required for diagnosis of depression?
> /- 5 sx present over 2 weeks including depressed mood or loss of interest/pleasure
What drugs cause/worsen depression?
- ADHD meds/methylphenidate/stimulants
- Analgesics (indomethacin)/procainamide
- Antiretroviral (NNRTIs; evafirenz, rilpivirine)
- CV meds (beta-blockers especially propranolol, clonidine)
- Antidepressants/Benzos
- Systemic steroids/ Interferons/Cyclosporine
- Ethanol
- Varenicline
- Hormones (hormonal contraceptives, anabolic steroids)
- Methadone and other opioids that can lower testosterone/estrogen levels
- Methyldopa/Parkinson’s
- Isotretinoin
What natural products are used to treat depression?
- St. John’s Wart
- SAMe
- 5-HTP
- Valerian
What are safety concerns with natural products?
- St. John’s Wart- increase risk of serotonin syndrome, broad CYP enzyme inducer, photoxicity
- SAMe- increase risk of serotonin syndrome
- 5-HTP- increase risk of serotonin syndrome
What is the 1st line therapy for mild-moderate depression in pregnancy?
Psychotherapy
What is 1st line for severe depression in pregnancy?
- if on SSRI before preg, continue if safe
- SSRIs: sertraline, escitalopram
What are warnings with SSRIs during pregnancy?
- Persistent pulmonary HTN of new born
- Cardiac effects (Paroxetine)
What are preferred treatments for post partum depression?
- SSRIs
- zuranolone PO (Zurzuvae)- C-IV
- brexanolone IV (Zulresso)- C-IV; moderate to severe PPD
What agents are restricted to patients unresponsive to other therapies due to drug-drug/drug-food interactions?
nonselective MOA inhibitors:
phenelzine, tranylcypromine, isocarboxazid
What are s/sx of serotonin syndrome?
- severe Nausea
- Dizziness
- Headache
- Diarrhea
- Agitation
- Tachycardia
- Hallucinations
- Muscle rigidity
How should all antidepressants be discontinued?
Taper over several weeks
EXCEPT fluoxetine self-tapers long half life
What are black boxed warnings with all antidepressants?
- Increase in suicidal thoughts or actions in Childrens, Teens, and young adults (changes in mood/behavior/thoughts/feelings)
- MedGuide is REQUIRED for all antidepressants
How long does it take for antidepressants to work?
when used daily, 1-2 weeks for physical symptoms and a month or longer for psychological symptoms
What is the MOA of SSRIs?
increase 5-HT by inhibiting its reuptake in the neuronal synapse
What are CIs for all SSRIs?
- DO not use with MOA inhibitors, Linezolid, IV methylene blue, or pimozide
- fluoxetine/paroxetine: do not use with thioridazine
- fluvoxamine: do not use with alosetron, thioridazine, tizanidine
- sertaline soln: do not use with disulfuram
- Brisdelle (paroxetine): pregnancy
What are warnings with all SSRIs?
- QT Prolongation: do not exceed 20mg/d in elderly (>60 y/o), liver disease, CYP2C19 poor metabolizers or inhibitors; do not exceed 10mg/d escitalopram in elderly
- SIADH/Hyponatremia, Fall Risk (caution in elderly avoid if history of falls or use of CNS depressants)
- Bleeding (additive risk)
What are SEs with all SSRIs?
- Sexual SEs (low libido, ejaculation difficulty, anorgasmia, erectile dysfunction)
- Somnolence
- Insomnia
- Nausea
- Dry mouth
- Diaphoresis (dose related)
- Weakness
- Tremor
- Headache
- osteopenia/osteoporosis
- restless leg syndrome
What agent is preferred in patients with cardiac risk?
sertraline
What agents are approved for premenstrual dysphoric disorder PMDD and how are they dosed?
- Fluoxetine
- Paxil CR
- Sertraline
Continuous dosing or cyclical (luteal phase)
When should SSRIs be taken?
In the morning: fluoxetine (most awakening), others if not sedating
At night: paroxetine (most sedating), others if sedating
Which SSRI is not available in a solution?
fluvoxamine