Drugs for Anxiety (Anxiolytics) Flashcards
State the psychological components of anxiety (4)
- worry, nervousness, uneasiness
- arousal
- lack of concentration
- insomnia
State the physical components of anxiety (5)
- tachycardia
- sob
- nausea
- gastric acid hypersecretion
- trembling
GENERALISED ANXIETY DISORDER (GAD)
- ____, ____ worry over everyday matters
- interferes with daily functioning
- has both psychological and physical symptoms
- diagnosed when present for > ____ months
- most common cause of disability in the workplace
GENERALISED ANXIETY DISORDER (GAD)
- EXCESSIVE, UNCONTROLLABLE worry over everyday matters
- interferes with daily functioning
- has both psychological and physical symptoms
- diagnosed when present for > 6 months
- most common cause of disability in the workplace
State some other anxiety and fear disorders (4)
- ptsd - post traumatic stress disorders
- phobias
- panic disorder
- ocd - obsessive compulsive disorder
State the 3 functions of CNS depressants to treat anxiety disorders
State the level of dosage required for each function to be effective.
- sedative –> causes sedation and relaxation (use at low dose)
- hypnotic –> induces drowsiness and sleep and can have amnestic effects (use at high dose)
- anxiolytic –> reduces anxiety (use at low dose)
at very high doses, CNS depressants can cauase anaesthesia required for surgery
State the 2 classes of drugs used in treatment of anxiety disorders
- benzodiazepines
- non-benzodiazepines (zolpidem, busiprone, barbiturates, hydroxyzine, propanolol)
State the MOA of benzodiazepines in treatment of anxiety disorders
Benzodiazepines bind to allosteric site on GABA –> potentiates influx of Cl- ions by increasing frequency of GABA-induced channel opening –> hyperpolarisation of cell –> decreased AP firing
State the names of the short acting, intermediate acting and long acting benzodiazepines.
Short acting:
1. midazolam
2. triazolam
Intermediate acting:
1. alprazolam (xanax)
2. clonazepram
3. lorazepam
4. oxazepam
5. temazepam
Long acting:
1. chlordiazepoxixde
2. diazepam (valium)
3. flurazepam
Is lorazepam a short-acting, intermediate-acting or long-acting benzodiazepine?
intermediate acting
Is temazepam a short-acting, intermediate-acting or long-acting benzodiazepine?
intermediate-acting
Is diazepam a short-acting, intermediate-acting or long-acting benzodiazepine?
long-acting
Is alprazolam a short-acting, intermediate-acting or long-acting benzodiazepine?
intermediate-acting
Is triazolam a short-acting, intermediate-acting or long-acting benzodiazepine?
short-acting
Is valium a short-acting, intermediate-acting or long-acting benzodiazepine?
long-acting
valium = diazepam
State a clinical scenario where short-acting and long-acting drugs are each used.
short-acting –> medical procedures/surgery since there is rapid onset and short half life which allows for faster recovery
long-acting –> chronic conditions