Mood disorders and depression EXAM 3 Flashcards
Serotonin (5HT)
-Regulates sleep, appetite, pain, and libido
-Decrease in levels may result in poor impulse control, decreased appetite and sex drive +irritability
Decrease in Norepinephrine (NE)
-Anergia (lack of energy)
-Anhedonia (Lack of pleasure in life)
-Decreased concentration
-Decreased libido
Dopamine (DA)
-Reward and incentive process
Acetylcholine
Memory and learning
GABA
Calming
-Inhibiting neurotransmitter
Most common mental illness
Depression, also the leading cause of disability worldwide
Prevalence and co-morbidity, depression
-Number one mental illness
-Commonly occurs with other anxiety disorders or other psych disorders
-Depression can occur secondary to substance use or medical condition
-High risk of suicide (15%)
-Untreated depression is number one risk for suicide among youth
-Affects all family members
-Experience frustration, guilt and anger
-People dont understand the illness leading to difficulty living with people who are depressed, can lead to abuse
-Women more than men
-18-45 is common ages
What happens to the brain with chronic untreated depression
-Certain areas, such as the hippocampus can atrophy, it is unknown of the cause. But it is suspected that it is due to cortisol levels or decreased use of the hippocampus causes atrophy
Selective Serotonin Reuptake inhibitors (SSRI): MOA
Blocks 5HT reuptake in the synapse, more 5HT in the synapse for longer
-Takes 6-8 weeks for the full effect, should see some improvement in 2 wks
-Low lethality for OD
Selective Serotonin Reuptake inhibitors (SSRI): Uses
-Depression
-Bipolar
-Bulimia, panic, OCD and other anxiety disorders as well
Selective Serotonin Reuptake inhibitors (SSRI): Drugs names
-Fluoxetine (Prozac)
-Paroxetine (Paxil)
-Fluvoxamine (Luvox)
-Sertraline (Zoloft)
-Citalopram (Celexa)
-Escitalopram( Lexapro)
Selective Serotonin Reuptake inhibitors (SSRI): Common SE
-Nausea
-Diarrhea
-Fatigue
-Dizziness
-Dry mouth
-Sexual dysfunction
-Lower anticholinergic effects (Dry mouth, Blurred Vision, Urinary retention)
-Increased blood sugar
How to help with dry mouth SSRI
Hard candy, super common side effect
-Take with something else too
Selective Serotonin Reuptake inhibitors (SSRI): Other SE
-Insomnia
-Agitation
-Anxiety
-Weight changes
-Hyponatremia (with older adults on diuretics)
-Rash
-GI bleed
-Bruxism (Teeth grinding)
-Sleepiness
-Faintness
-Lightheaded
Selective Serotonin Reuptake inhibitors (SSRI): Symptoms to report to provider right away
-Onset or increase in suicidal thoughts
-Unusual bleeding
-Severe headache
-Rash or hives
-Weight loss
-Rapid HR
-Activation/impulsivity
Selective Serotonin Reuptake inhibitors (SSRI): Patient education
-Need to monitor glucose, SSRI increase glucose
-Cant stop abruptly, withdrawal
-Abstain from alc
-Watch for increased bruising, GI bleeds, Nosebleeds
-Grapefruit juice can increase plasma level of Zoloft
-Contraindicated in pt taking MAOI and TCA (5HT syndrome)
-Fluoxetine and Paroxetine can increase birth defects
-Late preg use of SSRI can increase risk of withdrawal or pulmonary HTN in newborn
SSRI why abstain from alc
Counteracts the effect of the drug
What meds are a concern for increased bruising, nosebleeds and GI bleeds for a pt taking SSRI
-ASA
-NSAIDS
-Steroids
-Anticoagulants
Grapefruit juice increases the plasma level of what SSRI
-Sertraline( Zoloft)
What two SSRI increase risk of birth defects
Fluoxetine and Paroxetine
SSRI interactions
-MAOI, TCA, ST john’s wort (all increase serotonin)
-Warfarin also increases 5HT
-Lithium increases 5HT
How long after taking a MAOI, it do need to wait to take an SSRI
14 days, washout period to avoid serotonin syndrome
Serotonin Syndrome
-Toxic state caused by increased 5HT in brain
Serotonin Syndrome: S+S
-Hyperactive or restless
-Tachycardia
-SUPER high fever
-Increased BP
-AMS (Delirium)
-Myoclonus (Muscle spasms)
-Mood swings
- GI disturbances, Diarrhea
-Seizures
-Abdominal pain
-Apnea
Greatest Risk of Serotonin Syndrome
-when combining drugs that both enhance serotonin levels
-MAOI and SSRI, Trazodone
When should you take SSRI
Morning because of sleep disturbances
Serotonin Syndrome mgmt
-Its a medical emergency
-Stop those 5HT drugs
-Cooling blankets for hyperthermia
-Anticonvulsants to prevent seizures
-Block the 5HT receptors
-Dantrolene or Diazepam
-Stop med
-Calm environment
-Safety (seizure precautions, anti psych)
-Fever: cooling blankets (she said tylenol but it isn’t effective for serotonin syndrome)
Dual action reuptake inhibitors (SNRI) MOA
-Inhibit the reuptake of 5HT and NE, more available in the synaptic space
Early signs of Serotonin Syndrome
-Muscle rigidity
-Tachycardia
-Fever
Late signs of Serotonin Syndrome
-Apnea
-Seizures
SNRI SE
-Weight loss can occur
-Fatigue
-Sweating
-Yawning
-Sexual dysfunction
-HA
-Hyponatremia (Older adults)
SNRI drugs
-Venlafaxine (Effexor)
-Duloxetine (Cymbalta)
-Desvenlafaxine (Pristiq)
Duloxetine SE
Hypoglycemia and orthostatic hypotension in the first week
-Should not be used in those with heavy alc consumption or liver disease
Desvenlafaxine SE
GI bleed
-increased intraocular pressure
-Increased cholesterol
SNRI education: BP
-Blood pressure MUST be taken often: risk of increased systolic BP