CNS drugs Flashcards
benzodiazepines examples
- Short-acting: Midazolam
- Intermediate-acting: Lorazepam, Alprazolam
- Longer-acting: Diazepam, Clonazepam
benzodiazepines uses
Commonly used as anxiolytics (sleeping pills)
benzodiazepines moa
potentiates GABA actions by increasing the frequency of chloride channel opening
GABA is an inter-neuron which inhibits the excitation of other neurons
benzodiazepines roa
- Oral
- IV
Midazolam, Lorazepam, Diazepam
benzodiazepines ae
- CNS:
- Increased drowsiness, decreased motor skills, increased reaction time
- Anterograde amnesia
- Paradoxical effects:
- Excitement, hallucination, outburst of rage
- Tolerance, dependence and withdrawal
Selective Serotonin Re-uptake Inhibitors (SSRIs) examples
Fluoxetine
Escitalopram
Sertraline
Paroxetine
Selective Serotonin Re-uptake Inhibitors (SSRIs) uses
Gold standard for depression, but usually not used due to to its adverse effects
Selective Serotonin Re-uptake Inhibitors (SSRIs) moa
Blocks re-uptake of Serotonin at the Serotonin Transporter (SERT)
Selective Serotonin Re-uptake Inhibitors (SSRIs) ae
- Anxiety
- Weight loss/gain
- Headache, nausea
- Hyponatremia
- Risk of Serotonin syndrome: confusion, agitation, restlessness
Tricyclic Antidepressants examples
Amitriptyline
Imipramine
Tricyclic Antidepressants uses
Depression
Tricyclic Antidepressants moa
Inhibits both serotonin and norepinephrine uptake
Tricyclic Antidepressants ae
- CNS:
- Sedation, fatigue
- Anticholinergic:
- Glaucoma, blurred vision, urinary retention, constipation
- Fatality in overdose
Serotonin Norepinephrine Re-uptake Inhibitors (SNRIs) examples
Venlafaxine
Serotonin Norepinephrine Re-uptake Inhibitors (SNRIs) uses
Depression
Serotonin Norepinephrine Re-uptake Inhibitors (SNRIs) moa
Inhibits both serotonin and norepinephrine uptake
Serotonin Norepinephrine Re-uptake Inhibitors (SNRIs) ae
- CNS:
- Agitation, irritable or drowsy
- Hyponatremia
typical (1st gen) antipsychotics examples
Haloperidol
typical (1st gen) antipsychotics uses
High potency anti-psychotics
typical (1st gen) antipsychotics moa
Typicals block D2 more than 5-HT2 receptors
typical (1st gen) antipsychotics ae
Extrapyramidal side-effects — Blocks dopamine
atypical (2nd gen) antipsychotics examples
Olanzapine, Clozapine
atypical (2nd gen) antipsychotics uses
Anti-psychotics with less extrapyramidal side effects than 1st gen
atypical (2nd gen) antipsychotics moa
Blocks 5-HT2 more than D2 receptors
atypical (2nd gen) antipsychotics ae
- Clozapine
- Agranulocytosis in 2% of patients, weight gain, sedation
- Olanzapine
- Weight gain and sedation
what class of drug is Paroxetine
SSRI
what class of drug is Lorazepam
Intermediate-acting Benzodiazepines
what class of drug is Venlafaxine
SNRI
what class of drug is Alprazolam
Intermediate-acting Benzodiazepines
what class of drug is Amitriptyline
TCA
what class of drug is Clozapine
Atypical (2nd Gen) antipsychotics
what class of drug is Sertraline
SSRI
what class of drug is Diazepam
Longer-acting Benzodiazepines
what class of drug is Imipramine
TCA
what class of drug is Haloperidol
Typical (1st Gen) antipsychotics
what class of drug is Midazolam
Short-acting Benzodiazepines
what class of drug is Escitalopram
SSRI
what class of drug is Clonazepam
Longer-acting Benzodiazepines
what class of drug is Olanzapine
Atypical (2nd Gen) antipsychotics
what class of drug is Fluoxetine
SSRI