CNS Flashcards
Mechanism of action of antidepressant drugs
a. bupropion — inhibits reuptake of dopamine
a. True, bupropion inhibits the reuptake of dopamine and NE
Mechanism of action of antidepressant drugs
b. escitalopram — inhibits monoamine oxidase
b. False, escitalopram is an SSRI an inhibits the reuptake of serotonin
Mechanism of action of antidepressant drugs
c. moclobemide — inhibits chloride ion conductance
c. False, Moclobemide is a MAOI-A and thus decrease metabolism of dopamine
Mechanism of action of antidepressant drugs
d. imipramine — inhibits reuptake of noradrenaline
d. True, TCA antidepressant inhibit the reuptake of NE and serotonin
Mechanism of action of antidepressant drugs
e. venlafaxine — inhibits reuptake of serotonin
e. True, venlafaxine is an SNRI and thus inhibits the reuptake of serotonin and NE
Drugs for Parkinson’s Disease:
a. pramipexole is converted to dopamine in the neuron
a. False, pramipexole is a non-ergot derived dopamine receptor agonist that is taken orally.
Drugs for Parkinson’s Disease:
b. carbidopa prevents the peripheral conversion of levodopa to dopamine
b. True, carbidopa is a dopamine decarboxylase inhibitor and thus inhibits peripheral dopamine metabolism
Drugs for Parkinson’s Disease:
c. pramipexole increases the risk of sudden-onset sleep attacks
c. True, DRA cause sedation, hallucination, confusion and hypotension
Drugs for Parkinson’s Disease
d. selegiline inhibits monoamine oxidase B
d. True, selegiline is a MAOI-B
Drugs for Parkinson’s Disease:
e. levodopa is used in the treatment of nausea and vomiting :
e. False, levodopa causes nausea and vomiting
CNS drugs which increase the risk of insomnia include:
a. moclobemide
a. True, MAOI causes insomnia and hypertensive crisis
CNS drugs which increase the risk of insomnia include:
b. phenobarbitone
b. False, phenobarbitone is a barbiturate that is used as an anticonvulsant, sedative and hypnotic
CNS drugs which increase the risk of insomnia include:
c. olanzapine
c. False, antipsychotic with anti-histamine effects cause sedation
CNS drugs which increase the risk of insomnia include:
d. fluoxetine
d. True, SSRIs cause insomnia, nausea and vomiting, sexual dysfunction, weight gain
CNS drugs which increase the risk of insomnia include:
e. venlafaxine
e. True, SNRIs cause insomnia, hypertension, palpitations, tachycardia and SIADH
Drugs which enhance the effects of GABA include:
a. valproic acid
a. True, valproic acid is an anticonvulsant that inhibits gaba transaminase and thus, inhibits gaba metabolism
Drugs which enhance the effects of GABA include:
b. ethosuximide
b. False, ethosuximide is a calcium channel blocker used as an anticonvulsant
Drugs which enhance the effects of GABA include:
c. diazepam
c. True, BDZ enhance the effects of gaba
Drugs which enhance the effects of GABA include:
d. phenobarbitone
d. True, barbiturates enhance the effects of GABA
Drugs which enhance the effects of GABA include:
e. carbamazepine
e. False, carbamazepine is a calcium channel blocker used as an anticonvulsant
CNS drugs which cause weight gain include:
a. valproic acid
a. False, valproic acid causes hepatoxicity and is teratogenic
CNS drugs which cause weight gain include:
b. amitriptyline
b. True, TCA cause weight gain
CNS drugs which cause weight gain include:
c. gabapentin
c. True
.
CNS drugs which cause weight gain include:
d. olanzapine
d. True, antipsychotic causes weight gain
CNS drugs which cause weight gain include:
e. topiramate
e. False, topiramate is an anticonvulsant that causes weight loss
In the management of epilepsy
a. topiramate is a cognitive enhancing drug
a. False, topiramate causes cognitive disorder
In the management of epilepsy
b. maternal use of valproic acid in the first trimester of pregnancy increases the risk of fetal neural tube defects
b. True, valproic acid is teratogenic
In the management of epilepsy
c. when valproic acid is used as “add-on” therapy, the dose of lamotrigine is doubled
c. False, valproic acid decreases the excretion of lamotrigine. Thus, the dose could be lessened not increased
In the management of epilepsy
d. the metabolism of phenytoin is saturable
d. True, phenytoin and fosphenytoin exhibit saturable metabolism (zero-order kinetics)
In the management of epilepsy
e. phenobarbitone is a hepatic enzyme inhibitor
e. False, barbiturates act on GABA receptors
Antidepressant agents which BLOCK the reuptake of serotonin include:
a. fluoxetine
a. True, SSRIs block the reuptake of serotonin
Antidepressant agents which BLOCK the reuptake of serotonin include:
b. moclobemide
b. False, MAOI inhibit the metabolism of dopamine
Antidepressant agents which BLOCK the reuptake of serotonin include:
c. amitriptyline
c. True, TCA block the reuptake of serotonin and NE
Antidepressant agents which BLOCK the reuptake of serotonin include:
d. venlafaxine
d. True, SNRI block the reuptake of serotonin and NE
Antidepressant agents which BLOCK the reuptake of serotonin include:
e. bupropion
e. False, bupropion blocks the reuptake of NE and dopamine
Use of antidepressants INCREASES the risk of the listed side effects:
a. escitalopram — diarrhoea
a. True, SSRIs cause both diarrhoea and constipation
Use of antidepressants INCREASES the risk of the listed side effects:
b. fluoxetine — constipation
b. True, SSRIs cause both diarrhoea and constipation
Use of antidepressants INCREASES the risk of the listed side effects:
c. bupropion — sedation
c. False, bupropion will cause insomnia
Use of antidepressants INCREASES the risk of the listed side effects:
d. imipramine — seizures
d. True, in TCA overdose seizures can occur
Use of antidepressants INCREASES the risk of the listed side effects:
e. moclobemide — agitation
e. True, MAOI cause agitation
In the management of anxiety and insomnia
a. venlafaxine blocks reuptake of GABA
a. False, venlafaxine is an SNRI and thus blocks the reuptake of serotonin and NE
In the management of anxiety and insomnia
b. diazepam causes more daytime sedation than zolpidem
b. False ?
In the management of anxiety and insomnia
c. moclobemide increases the risk of social phobia
c. False, indicated for the treatment of social phobia
In the management of anxiety and insomnia
d. oxazepam is preferred to diazepam in elderly patients
d. True ?
In the management of anxiety and insomnia
e. diazepam causes muscle spasm as an adverse effect
e. False, Diazepam has muscle relaxant properties
The following drugs cause postsynaptic hyperpolarization:
a. diazepam
a. True, BDZ cause hyperpolarization
The following drugs cause postsynaptic hyperpolarization:
c. fluoxetine
b. False, SSRI don’t cause hyperpolarization
The following drugs cause postsynaptic hyperpolarization:
d. moclobemide
c. False, MAOI don’t cause hyperpolarization
The following drugs cause postsynaptic hyperpolarization:
e. oxazepam
d. True, BDZ cause hyperpolarization
Dopamine-2 receptor ANTAGONISTS include:
a. bupropion
a. False, bupropion is a NE and dopamine reuptake inhibitor
Dopamine-2 receptor ANTAGONISTS include:
b. venlafaxine
b. False, Venlafaxine is a serotonin and NE reuptake inhibitor
Dopamine-2 receptor ANTAGONISTS include:
c. haloperidol
c. True, haloperidol is a first gen anti-psychotic and thus binds D2 receptors
Dopamine-2 receptor ANTAGONISTS include:
d. risperidone
d. True, risperidone is a D2 and serotonin receptor antagonist
Dopamine-2 receptor ANTAGONISTS include:
e. olanzapine
e. True, olanzapine antagonises D1-4, serotonin, a1 and histamine receptors
Neuroprotective agents
a. phenytoin is metabolised in the liver
a. True, phenytoin is hepatoxic
Neuroprotective agents
b. valproic acid is contraindicated in pregnancy
b. True, valproic acid is teratogenic
Neuroprotective agents
c. ethosuximide causes absence seizures
c. False, ethosuximide is a calcium channel blocker indicated for the treatment absence seizures
Neuroprotective agents
d. lamotrigine is a mood stabilizing agent
d. True, lamotrigine is a sodium and calcium channel blocker primarily indicated for focal, generalized and absence seizures, lennox gastut syndrome, but also as a mood stabilizer in bipolar disorder
Neuroprotective agents
e. gabapentin increases intra-neuronal calcium ion concentrations
e. True, gabapentin is a calcium channel blocker
The following CNS drugs cause sedation:
a. diazepam
a. True, BDZ have a sedative effect
The following CNS drugs cause sedation:
b. escitalopram
b. False, SSRIs cause insomnia
The following CNS drugs cause sedation:
c. olanzapine
c. True, the anti-histamine effects of antipsychotics cause sedation
The following CNS drugs cause sedation:
d. moclobemide
d. False, MAOI cause insomnia
The following CNS drugs cause sedation:
e. amitriptyline
e. True, TCA antidepressants cause sedation
In the management of major depressive disorder
a. bupropion causes sexual dysfunction
a. False, bupropion is associated with an increased risk of seizures
In the management of major depressive disorder
b. venlafaxine increases the risk of insomnia
b. True, SNRIs increase the risk of insomnia
In the management of major depressive disorder
c. imipramine causes enuresis
c. False, imipramine is indicate for enuresis
In the management of major depressive disorder
d. vortioxetine is an antagonist at 5HT7 receptors
d. True, inhibits the serotonin cotransporter and antagonises the receptors
In the management of major depressive disorder
e. agomelatine stimulates melatonin receptors
e. True , potent agonist
The listed antidepressants block presynaptic serotonin transporters
a. fluoxetine
a. True, SSRIs prevent the reuptake of serotonin by inhibiting the serotonin cotransporter
The listed antidepressants block presynaptic serotonin transporters
b. vortioxetine
b. True, vortioxetine prevents the reuptake of serotonin by inhibiting the serotonin cotransporter
The listed antidepressants block presynaptic serotonin transporters
c. moclobemide
c. False, moclobemide is a MAOI and thus prevents the metabolism of dopamine
The listed antidepressants block presynaptic serotonin transporters
d. amitriptyline
d. True, TCA prevent the reuptake of serotonin
The listed antidepressants block presynaptic serotonin transporters
e. escitalopram
e. True, SSRIs prevent the reuptake of serotonin by inhibiting the serotonin cotransporter
Anxiolytic and hypnotic agents
a. diazepam is a positive allosteric modulator of GABA
a. True, BDZ enhances the effects of gaba
Anxiolytic and hypnotic agents
b. zolpidem is a more effective muscle relaxant than diazepam
b. False, BDZ are more effective muscle relaxants
Anxiolytic and hypnotic agents
c. midazolam reduces postsynaptic chloride ion conductance
c. False, BDZ increase chloride conductance
Anxiolytic and hypnotic agents
d. buspirone is used as an “add-on” therapy in cases of resistant depression
d. True, It has also been used as a second-line therapy for unipolar depression when the use of selective serotonin reuptake inhibitors (SSRIs) is deemed clinically inadequate or inappropriate
Anxiolytic and hypnotic agents
e. oxazepam is preferred to diazepam in elderly patients (>65 yrs)
e. Ture, short duration BDZ are recommended for the elderly
Therapeutic uses of antipsychotic agents
a. sulpiride suppresses lactation in postpartum women
a. False, sulpiride causes lactation
Therapeutic uses of antipsychotic agents
b. olanzapine is used in the management of hyperlipidaemia
b. False, olanzapine causes hyperlipidaemia
Therapeutic uses of antipsychotic agents
c. aripiprazole is used as an adjunct to antidepressants for resistant depression
c. True, Aripiprazole is indicated for manic and mixed episodes associated with bipolar I disorder, irritability associated with autism spectrum disorder, treatment of schizophrenia, treatment of Tourette’s disorder, and as an adjunctive treatment of major depressive disorder
Therapeutic uses of antipsychotic agents
d. risperidone is used in children
d. True, used to treat conduct disorder in children
Therapeutic uses of antipsychotic agents
e. haloperidol is used to treat tardive dyskinesia
e. False, anti-psychotics cause tardive dyskinesia
Adverse effects of antiepileptic drugs
a. phenytoin — gingival hyperplasia
a. True
Adverse effects of antiepileptic drugs
b. carbamazepine — insomnia
b. False, carbamazepine primarily causes hyponatraemia but is also associated with somnolence
Adverse effects of antiepileptic drugs
c. clonazepam — sedation
c. Ture, BDZ cause sedation
Adverse effects of antiepileptic drugs
d. ethosuximide — weight gain
d. False, weight loss
Adverse effects of antiepileptic drugs
e. lamotrigine — rash
e. True, lamotrigine causes SJS
The following drugs increase the risk of tonic-clonic seizures:
a. carbamazepine
a. False, indicated for the treatment of tonic clonic seisures
The following drugs increase the risk of tonic-clonic seizures:
b. amitriptyline
b. True, TCA overdose causes seizures
The following drugs increase the risk of tonic-clonic seizures:
c. bupropion
c. True, bupropion increases the risk of seizures
The following drugs increase the risk of tonic-clonic seizures:
d. clozapine
d. False, antipsychotics don’t cause seizures
The following drugs increase the risk of tonic-clonic seizures:
e. lamotrigine
e. False, indicated for the treatment of seizures
Benzodiazepines
a. Diazepam enhances the effects of GABA
a. True, BDZ enhance the effect of GABA
Benzodiazepines
b. Cause sedation
b. True, BDZ are sedatives
Benzodiazepines
c. Block chloride channels
c. False, BDZ allosteric enhancement of Cl conductance
Benzodiazepines
d. Clonazepam is used in the management of epilepsy
d. True, clonazepam is an anticonvulsant indicated for the management of epilepsy and panic disorder
Benzodiazepines
e. Cause respiratory depression in overdose
e. True, symptoms of overdose include: respiratory depression, hypotension, confusion, paradoxical agitation, hallucination, slurred speech, ataxia and coma
Anxiolytics and hypnotic agents
a. diazepam causes muscle spasm as an adverse effect
a. False,
Anxiolytics and hypnotic agents
b. flumazenil is used in the management of diazepam overdose
b. True
Anxiolytics and hypnotic agents
c. diazepam blocks chloride ion channels
c. False
Anxiolytics and hypnotic agents
d. oxazepam has a shorter half-life (t1/2) than diazepam
d. True
Anxiolytics and hypnotic agents
e. zolpidem causes sedation
e. True
Use of antidepressant drugs
a. clomipramine is associated with erectile dysfunction
a. False, TCA not associated with ED
Use of antidepressant drugs
b. venlafaxine is indicated for post-herpetic neuralgia
b. True
Use of antidepressant drugs
c. citalopram overdose causes malignant
c. False
Use of antidepressant drugs
hyperthermia
d. amitriptyline overdose causes convulsions
d. True
Use of antidepressant drugs
e. the combination of fluoxetine and tramadol increases the risk of serotonin syndrome
e. True
Mechanism of action of drugs used in the management of depression
a. clomipramine: monoamine oxidase inhibitor
a. False, TCA
Mechanism of action of drugs used in the management of depression
b. sertraline: selective serotonin reuptake inhibitor
b. True
Mechanism of action of drugs used in the management of depression
c. venlafaxine: serotonin norepinephrine reuptake inhibitor
c. True
Mechanism of action of drugs used in the management of depression
d. amitriptyline: tricyclic antidepressant
d. True
Mechanism of action of drugs used in the management of depression
e. lithium: dopamine receptor blocker
e. False, mood stabilizer
Adverse effects associated with tricyclic antidepressants use
a. hypothermia
a. False
Adverse effects associated with tricyclic antidepressants use
b. hypotension
b. True
Adverse effects associated with tricyclic antidepressants use
c. weight loss
c. False
Adverse effects associated with tricyclic antidepressants use
d. glaucoma
d. False
Adverse effects associated with tricyclic antidepressants use
e. dry mouth
e. True
Mechanism of action of drugs used in the management of Parkinson’s Disease
a. levodopa: monoamine oxidase inhibitor
a. False, dopamine precursor
Mechanism of action of drugs used in the management of Parkinson’s Disease
b. bromocriptine: dopamine receptor agonist
b. True, ergot derivative DRA
Mechanism of action of drugs used in the management of Parkinson’s Disease
c. rasagiline: increases synaptic dopamine levels
c. False, DRA not MAOI
Mechanism of action of drugs used in the management of Parkinson’s Disease
d. entacopone: Catechol-O-methyltransferase(COMT) inhibitor
d. True, prevent the peripheral metabolism of levodopa
Mechanism of action of drugs used in the management of Parkinson’s Disease
e. selegiline: muscarinic receptor agonist
e. False, MAOI B
Antiepileptics
a. phenytoin causes gingival hyperplasia
a. True
Antiepileptics
b. carbamazepine induces hepatic microsomal enzymes
b. True
Antiepileptics
c. valproic acid is teratogenic
c. True
Antiepileptics
d. ethosuximide is used in the management of tonic-clonic seizures
d. False, only indicated for absence seizures
Antiepileptics
e. diazepam is used intravenously in status epilepticus
e. True
Antipsychotic drugs
a. haloperidol increases the risk of akathisia
a. True, antipsychotic increase the risk of akathisia
Antipsychotic drugs
b. clozapine causes weight loss
b. False
Antipsychotic drugs
c. risperidone reduces aggression in children
c. True
Antipsychotic drugs
d. olanzapine causes insomnia
d. False, sedation (anti-histamine properties
Antipsychotic drugs
e. haloperidol is a dopamine-2 receptor agonist
e. False, competitive inhibitor