S54 - Pharmacology of Anxiety Disorders Flashcards
_____________ are the most effective and safe (relatively) for rapid relief of anxiety symptoms.
Benzodiazepines
BZD's clobazam (Onfi®) clonazepam (Klonopin®) clorazepate (Tranxene®) diazepam (Valium®) lorazepam (Ativan®)
_________ is an optional treatment in patients without comorbid depression or other anxiety disorders.
Buspirone (Buspar)
First Line therapy for Generalized Anxiethy Disorder (GAD)
Duloxetine (Cymbalta) Escitalopram (Lexapro) Paroxetine (Paxil) Sertraline (Zoloft) Venlafexine XR (Effexor)
First Line therapy for Panic Disorder
SSRI’s
- fluoxetine (Prozac)
- sertraline (Zoloft)
- paroxetine (Paxil)
- citalopram (Celexa)
- escitalopram (Lexapro)
- vortioxetine (Trintellix)
Venlafexine XR (Effexor)
First Line Therapy for Social Anxiety Disorder
Escitalopram (Lexapro) Paroxetine (Paxil) Sertraline (Zoloft) Venlafexine XR (Effexor) Fluvoxemine CR
Aytpical antipsychotics low-dose have been used for GAD –
Quetiapine 150 mg = paroxetine 20 mg/day.
Pregabalin is used in Europe as a first-line agent for GAD.
Off-label at best in the USA.
Not included into treatment algorithms.
Antidepressants are considered the first-line agents in GAD.
Duloxetine (Cymbalta) Escitalopram (Lexapro) Paroxetine (Paxil) Sertraline (Zoloft) Venlafexine XR (Effexor)
FDA approved for Generalized Anxiety Disorder (GAD)
Response is delayed 2-4 weeks.
paroxetine (Paxil)
duloxetine (Cymbalta)
venlafaxine (Effexor)
escitalopram (Lexapro)
________ is FDA approved for PD with or without agoraphobia.
Alprazolam (Xanax)
FDA Approved agents for acute anxiety
Alprazolam (Xanax) clonazepam (Klonopin®) clorazepate (Tranxene®) diazepam (Valium®) lorazepam (Ativan®) chlordiazepoxide (Librium) Oxazepam (Serax)
IM administration of diazepam and chlordiazepoxide should be AVOIDED –
erratic absorption and painful.
Which BZD’s are glucuronidated?
Only lorazepam and oxazepam are glucuronidated
Clonazepam undergoes
nitroreduction.
Diazepam is also metabolized by
CYP 2C19
__________ is a prodrug converted to DMDZ in the GI tract under acidic pH. Watch out for antacid use!
Clorazepate
Long-acting BZ are metabolized to desmethyldiazepam (DMDZ) – active metabolite.
BZ efficacy – 65-75% response rate within 2 weeks.
Only effective for the
somatic symptoms.