Anxiety Flashcards
What are the risk factors for anxiety?
- Women - Age: develops prior ro age 30 - Family history of anxiety or depression - Life stressors
Pathophysiology of Anxiety?
- Abnormal NT functioning in the amygdala, GABA, NE, Serotonin - Corticotrophin releasing factor - Cholecystokinin - Glutamate - Substance P
Classifications of anxiety
- Generalized anxiety disorder - Panic disorder - Social anxiety disorder - Obsessive-compulsive disorder - Post traumatic stress disorder - Specific phobias
Nonpharm treatment of Anxiety?
- Psychotherapy - Cognitive behavioral therapy - Meditation - Exercise - Avoid caffeine, stimulants, diet pills, or other meds that cause anxiety - Identify and remove causes of anxiety
Pharmacologic treatment of anxiety
- Antidepressants SSRI, ANRIs, TCAs - Benxodiazepines - Buspirone - Hydroxyzine - Pregabalin
GAD 1st and 2nd line?
1st: SSRIs/SNRIs 2nd: Benzos as needed, buspirone
Panic disorder first line?
SSRIs may need scheduled benzos for 2-4 weeks May need PRN benzo for attacks
OCD? 1st line and 2nd line?
1st: SSRIs (high dose) or CBT or both 2nd line: Clomipramine or antipsychotic augmentation
Social anxiety 1st and 2nd line
1st SSRI/ SNRIs 2nd: Benzos Beta blockers for performance anxiety
PTSD 1st line? Adjunctive agents? What not to give?
1st SSRIs, SNRIs, Add Prazosin or antipsychotic or mood stabalizer No benzos
Specific phobia treatment?
CBT
SSRIs first line for GAD, PD, OCD, Social anxiety, PTSD
- Start at a lower dose - Can initially cause anxiety - Slower onset than benzos - Need higher dosages for OCD
You need a higher when starting an SSRI with what disease?
OCD
Escitalopram is approved for the treatment of?
Approved for GAD
Fluoxetine is approved for?
approved for PD
Fluvoxamine approved for the treatment of?
OCD
Paroxetine approved for the treatment of?
treatment of GAD, OCD, PD, PTSD, SAD
Sertraline Approved for the treatment of?
treatment of OCD, PTSD
Venlafaxine XR approved for the treatment of?
GAD and SAD
Duloxetine treatment of?
GAD
What are the SEs of SSRIs?
S-Stomach (N/V/D) S- Sexual dysfunction R- Restlessness, Jitteriness I- Insomnia Headache, Weight gain, withdrawal from abrupt discontinuation
Antidepressant tips - If one SSRI/SNRI is ineffective what should be done? - Patients often become tolerant to what? - These medications require? - How many weeks does it take to see response? - When you stop an SSRI how do you do it?
- You should try another one - SEs usually stop within a few weeks expect for Sexual Dysfunction - These require daily administration - Often take 4 weeks or more to see effect - Upon discontinuation you have to taper
Benzo are ___ line or adjunct for? Most effective for? Shouldnt be used to treat?
2nd line for anxiety Most effective for acute symptoms Not effective for OCD or PTSD
What benzos have a very fast onset?
Alprazolam, Diazepam (super fast)
LOT what are the drugs and what are they good for?
Temazepam, Lorazepam, Oxazepam Good for the liver Little to no CYP metabolism
Benzos with slow onset?
Oxazepam, Clonazepam, Lorazepam
Im administration what benzo?
Lorazepam
Most benzos are substrates for?
CYP3A4
Substrate of 2C19
Diazepam
Inhibitors of CYP3A4
Amiodarone, Azoles, AIDS protease inhibitors, Cimetidine, Ciprofloxacin, Clarithromycin/Erythromycin, CCBs (Diltiazem/Verapamil) Fluvoxamine, Grapefruit, Nefazodone
SEs of benzos?
Sedation, Psychomotor, Impairment, Ataxia, Anterograde amnesia, Confusion, disorientation, Excitement/aggression, Addiction,
You can die from benzos if you take what?
Drink on them or take CNS depressants
Very new black box warnign for Benzos, opiod analgesics?
Serious risks associated with combined use of opioid medications and benzos Risk include extreme sleepiness, respiratory depression, coma and death
Less serious withdrawal symptoms of benzos?
- Anxiety
- Irritability
- Tremor
- Insomnia
- Muscle weakness
- Nausea
*
Serious withdrawal symptoms of benzos?
- Confusion
- Delirium
- Psychosis
- Seizures
What types of benzos have an increased risk of addiction?
- Short half life
- Long duration of use
More severe withdrawal symptoms after ____ months but when can dependence start?
3 months
Dependence can occur 3-6 weeks of treatment
Slow tapering is necessary for what type of benzos?
Short half life due to withdrawal symptoms
Guide to tapering Benzos
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What are the 2 tapering methods for benzos?
- Method 1
- 25% decrease every few days (5-7) until 50% of original dose reached
- Then 1/8 dose reduction every 4-7 days
- Alprazolam cannot be tapered more than 0.5 mg Q3D
- Method 2
- Subsitute a long half life agent (Diazepam, Clonazepam) using equivalent dosages
- Long acting benzos are easier to taper than short acting
Guidelines for pregnancy and lactation with benzos
What should you use instead?
- Benzos should be avoided
- Cleft palate especially in the first trimester
- Lethargy and poor temperature regualtion (floppy baby) in nursing mothers
- SSRI if you need a PRN use Diphenhydramine, or Hydroxazine
Tips for benzos
- Weigh out the benefit vs. the risk
- Risk of dependence, avoid in patients with history of substane abuse
- Benzos are especially useful during ___ treatment
- Overall durations of benzos should not exceed?
- Benzos with what are generally preferred over ____ with the treatmetn of GAD
- Higher doses are generally required for what disorder?
- initial treatment
- 4-6 months
- longer half life better
- Panic disorder
Buspirone indication?
max dose?
SEs?
Good alternative for?
What is the onset?
- GAD
- 60 mg/day
- Dizziness, Nausea, Headache, Dysphoria
- Alternative to benzos for patients with substance abuse history
- onset is slow 4-6 weeks
WHat other medications can be used for the treatment of anxiety?
- Antihistamines, Hydroxazine (FDA approved), Diphenhydramine
- Anticonvulsants
- Pregabalin
- Gabapentin
- Antipsychotics
- Quintiapine
- Beta blockers
- Propranolol (public speeching)
- TCAs
- Chlorimipramine (OCD)
When can you attempt to stop anxiety meds?
GAD
PD and OCD
social anxiety
Resume if?
Lifelong treatmetn for?
- 12 months GAD
- 12-24 months in PD and OCD
- 1 year for social anxiety
- Life long if 2-4 relapses
PTSD
The event is persistnetly reexperienced
What to avoid
Symptoms for longer than?
Avoid stimulants
Symptoms longer than 1 month
Non pharm treatment for PTSD?
- Short term: Stress management, hypnosis
- CBT
- Eyemovement desensitization and reprocessing
First line treatment for PTSD?
Second line?
SSRIs or venlafaxine
Mirtazepine, or TCA, Adjunctive medications
BENZOS are not effective
Adjunctive therapy for PTSD?
- Prazosin
- Stops nightmares
- Atypical antipsychotics
- Reserved for non-responders
- Intrusive thoughts and hypervigilance
- Anticonvulsants
- Anger and aggression
- Limited data, lamotrigine has some data