Anxiolytics & Hypnotics Flashcards
Anxiolytic and hypnotic agents?
Benzodiazepines
Barbiturates
Antidepressants
Buspirone
Examples of bzd?
Diazepam
Lorazepam
Clonazepam
Triazolam
Alprazolam
Bzd antidote
Flumanezil
Actions of bzd
Anxiolytic
Sedative, hypnotic
Anticonvulsant
Muscle relaxant
Anterograde amnesia
Bzd used for anxiety
Lorazepam
Diazepam
Clonazepam
Alprazolam
Bzd for muscle disorders
Diazepam
Bzd for amnesia
Midazolam
Bzd for seizures
Lorazepam
Diazepam
Clonazepam
Bzd for sleep disorders?
Long acting: flueazepam
Intermediate: temazepam
Short acting: triazolam
Withdrawal symptoms of bzd?
Confusion
Anxiety
Agitation
Insomnia
Adverse effects of bzd
Drowsiness
Confusion
Cognitive impairment
Precautions of bzd
Liver disease
Avoided in patients with narrow angle glaucoma
Synergistic effect with alcohol
Antidepressants used?
Ssri: escitaloprim
Snri: venlafaxine
Buspirone is used for?
Chronic treatment of generalized anxiety disorder
Moa of buspirone?
Works on serotonin receptors
Advantages of buspirone
Minimal adverse effects
(Headache, dizziness)
Low sedation and low cognitive dysfunction
Low abuse potential
Disadvantages of buspirone
Slow onset of action
Hypothermia
Increases prolactin and GH levels
Do barbiturates have an antidote
No
Why were barbiturates largely replaced by bzd
Severe withdrawal symptoms
Physical dependence
Tolerance
Drug metabolizing enzymes
Actions of barbiturates is divided based on?
Durations of action
Ultra rapid barb?
Thiopental
Induction of anesthesia
Short acting barb?
Pentobarbital
Secobarbital
Amobarbital
Sedative hypnotic (not anxiolytic)
Long acting barb?
Phenobarbital
TTT of seizures
Actions of barbiturates?
Cns depression:
Low doses sedative
High doses hypnosis anesthesia coma death
Respiratory depression followed by death
Enzyme induction of cyp450