Central Nervous System Flashcards
[Sedative Hypnotics]
acute anxiety attacks, anesthesia induction, preoperative sedation, decrease REM sleep
midazolam
[Sedative Hypnotics] seizure disorders (status epilepticus), alcohol withdrawal, tranquilizer
diazepam
[Sedative Hypnotics]
date-rape drug
flunitrazepam
[Sedative Hypnotics]
antidote to benzodiazepine overdose
flumazenil
[Sedative Hypnotics]
anesthesia induction, lethal injection, truth serum
thiopental
[Sedative Hypnotics]
seizure disorders in children
SE: precipitates porphyria, potent inducer of CYP450
phenobarbital
GABA receptor effects
FREnzodiazepines: FREquency
BarbiDURATes: DURATion
GABA receptor effects
FREnzodiazepines: FREquency
BarbiDURATes: DURATion
[preferred benzodiazepine]
anticonvulsant maintenance
clonazepam
[preferred benzodiazepine]
status epilepticus
lorazepam, diazepam
[preferred benzodiazepine]
skeletal muscle relaxation (eg, cerebral palsy)
diazepam
[preferred benzodiazepine]
panic disorders, phobias
alprazolam, clonazepam
[preferred benzodiazepine]
insomnia
estazolam, flurazepam, triazolam
[preferred benzodiazepine]
anesthesia induction
midazolam, diazepam
[preferred benzodiazepine]
bipolar disorder
clonazepam
[preferred benzodiazepine]
alcohol withdrawal
chlordiazepoxide, diazepam
what abnormal sleep pattern results from the use of benzodiazepines?
decreased REM sleep
which benzodiazepine has the longest half-life?
Chlordiazepoxide
half life: 36-200 hours
which drugs are considered date-rape drugs?
“AFG”
Alcohol (most common)
Flunitrazepam (rohypnol)
Gamma-hydroxybutyrate
shortest acting
Thiopental
“TAYOpental= TAYO agad”
what is the most catastrophic symptom of sedative-hypnotic withdrawal?
rebound suicide
mnemonic:
“zzzzzzzzzzzz (sleep)”
zolpidem, zaleplon = zleep disorders
mnemonic:
“zzzzzzzzzzzz (sleep)”
zolpidem, zaleplon = zleep disorders
mnemonic:
“Busiperone for Busy people”
(always anxious)
BuSPirone like your BenzodiaSePine
mnemonic:
“Busiperone for Busy people”
(always anxious)
BuSPirone like your BenzodiaSePine
SEDATIVE-HYPONOTIC POISONING "Hot Hot Hot DeCisioN!" Hypothermia Hypotension Hypoactive BS Disinhibition Coma Nystagmus
SEDATIVE-HYPONOTIC POISONING "Hot Hot Hot DeCisioN!" Hypothermia Hypotension Hypoactive BS Disinhibition Coma Nystagmus
[alcohols]
most frequently abused drug,
Wernicke-Korsakoff syndrome in overdose,
Delirium tremens in withdrawal
ethanol
[alcohols]
prevention of Wernicke-Korsakoff syndrome
thiamine
[alcohols]
treatment of alcohol withdrawal
diazepam
[alcohols]
wood alcohol
SE: visual dysfunction due to formaldehyde accumulation
methanol
[alcohols]
antifreeze
SE: nephrotoxicity due to oxalic acid accumulation
ethylene glycol
[alcohols]
alcohol dehydrogenase inhibitor
fomepizole
[alcohols]
aldehyde dehydrogenase inhibitor
disulfiram
DISULFIRAM "Clara took the Pre-Medical Test in the PM" Chlorpropamide cefoPerazone cefoMandole cefoTetan cefoProcarbazine cefoMetronidazole
DISULFIRAM "Clara took the Pre-Medical Test in the PM" Chlorpropamide cefoPerazone cefoMandole cefoTetan cefoProcarbazine cefoMetronidazole
[antiseizure drugs] status epilepticus, potent CYP450 inducer, antiarrhythmic class 1b SE: gingival hyperplasia, hirsutism, fetal hydantoin syndrome (long upper lip, thin vermillion border)
phenytoin
[antiseizure drugs]
potent CYP450 inducer,
DOC for partial seizures and trigeminal neuralgia
SE: blood dyscrasias
carbamazepines
[antiseizure drugs]
potent CYP450 inhibitor,
DOC for GTC and myoclonic seizures
SE: teratogen (spina bifida)
valproic acid
[antiseizure drugs]
potent CYP450 inducer,
DOC for seizures in children and pregnant women
SE: porphyria
phenobarbital
[antiseizure drugs]
DOC for absence seizures
SE: behavioral changes
ethosuximide (Ca channels)
[antiseizure drugs]
DOC for status epilepticus
SE: anterograde amnesia
diazepam
[antiseizure drugs]
treatment of neuropathic pain
SE: nystagmus, tremor
gabapentin
[antiseizure drugs]
anti-seizure for pregnant women
SE: Stevens Johnson Syndrome
lamotrigine
DOC for generalized tonic clonic seizures
DOC:
valproic acid
phenytoin
carbamazepine
alternative drugs:
phenobarbital
lamotrigine
topiramate
DOC for partial seizures
DOC:
carbamazepine
lamotrigine
phenytoin
alternative drugs: felbamate phenobarbital topiramate valproic acid
DOC for absence seizures
DOC:
ethosuzimide
valproic acid
alternative drugs: lamotrigine levetiracetam zonisamide clonazepam
DOC for myoclonic and atypical absence syndromes
DOC:
valproic acid
alternative drugs: clonazepam levetiracetam topiramate zonisamide felbamate
DOC for status epilepticus
lorazepam
diazepam
phenytoin
phenobarbital
DOC for bipolar affective disorders
valproic acid (first-line for mania)
carbamazepine
lamotrigine
DOC for trigeminal neuralgia
carbamazepine (DOC)
oxcarbazepine
DOC for neuropathic pain (postherpetic neuralgia)
gabapentin
pregabalin
DOC for migraine
gabapentin
phenytoin
topiramate
[general anesthetics]
highest MAC (lowest potency)
SE: euphoria
nitrous oxide (least cardiotoxic)
[general anesthetics]
facilitated GABA-mediated inhibition, block NMDA and ACh-N receptor
SE: pulmonary irritant
desflurane
does not cause bronchodilation
[general anesthetics]
facilitated GABA-mediated inhibition, block NMDA and ACh-N receptor
SE: postoperative hepatitis, malignant hyperthermia
halothane (if given with succinylcholine)
[general anesthetics]
lowest MAC (highest potency),
slowest induction and recovery
SE: renal insufficiency
methoxyflurane
[general anesthetics]
dissociative anesthesia, NMDA receptor blocker
SE: emergence delirium
ketamine
[general anesthetics]
anesthesia for patients with limited cardiopulmonary reserve
SE: adrenal suppression
etomidate
[general anesthetics]
prolonged sedation,
“milk of amnesia”
SE: hypotension
propofol
[local anesthesia]
how will you distinguish whether local anesthetics are esters or amides?
ESTERS have only 1 i in their names.
tetracaine
procaine
benzocaine
AMIDES have 2 i’s in their names.
bupivacaine
ropivacaine
lidocaine
[local anesthesia]
which local anesthetics have the shortest and longest half-lives?
PROCAINE = shortest half-life (1-2 mins)
A PRO finishes the race fastest.
ROPIVACAINE = longest half-life (4.2 hrs)
at the end of the long ROPe.
[local anesthesia]
why should we not inject LIDOCAINE into abscesses?
*don’t inject lidocaine into abscess
*won’t work due to acidic environment
(below pKa = protonated form predominates, so it can’t penetrate tissues)
[local anesthesia]
what is the toxic dose of lidocaine?
5mg/kg for any drug or solution, 1%=10mg/mL
[skeletal muscle relaxants]
prototype nondepolarizing neuromuscular blocker
SE: orthostatic hypotension
tubocurarine
[skeletal muscle relaxants]
undergoes Hoffman elimination
SE: bronchospasm, most frequently used non-depolarizing neuromuscular blocker
atracurium
[skeletal muscle relaxants]
lethal injection, strychnine poisoning
SE: hypertension
pancuronium
KCl, thiopental, pancuronium
[skeletal muscle relaxants]
reversal agent for nondepolarizing neuromuscular blockade
SE: miosis, salivation, diarrhea
neostigmine
[skeletal muscle relaxants]
depolarizing neuromuscular blocker
SE: malignant hyperthermia, affected by pseudocholinesterase activity
succinylcholine
[anti-parkinsonism drugs]
DOC for Parkinson disease
levodopa + carbidopa
[anti-parkinsonism drugs]
treatment of hyperprolactinemia
SE: erythromelalgia, pulmonary fibrosis
bromocriptine
[anti-parkinsonism drugs]
adjunctive drug for wearing-off phenomena
SE: red-orange urine
entocarpine
[anti-parkinsonism drugs]
cause fulminant hepatitis
tolcarpone
[anti-parkinsonism drugs]
anti-parkinsonism drug with antiviral properties
SE: livedo reticularis, cerebellar ataxia
amantadine
[anti-parkinsonism drugs]
improves tremor and rigidity but has no effect of bradykinesia, atropine-like side effects
benztropine, biperiden
what are the primary signs of Parkinson disease?
Parkinson Disease "It's a TRAP!" tremor rigidity akinesia postural instability
What drugs ca cause livedo reticularis?
livedo reticularis "A man reads FHM and GQ!" amantadine hydroxyurea minocycline gemcitabine quinidine
[anti-psychotic drugs]
prototype typical antipsychotic; may also block alpha and histamine receptor
SE: corneal/lens deposits, failure of ejaculation
chlorpromazine, promethazine
[anti-psychotic drugs]
treatment of floridly psychotic patients
SE: major EPS (neuroleptic malignant syndrome)
haloperidol
[anti-psychotic drugs]
DOC for suicidal and refractory schizophrenics
SE: agranulocytosis
clozapine
[anti-psychotic drugs]
2nd generation (5HT»>D2)
SE: obesity, hyperglycemia
Olanzapine
[anti-psychotic drugs]
2nd generation (5HT»>D2)
SEL priapism, hypnagogic hallucinations
quetiapine
[anti-psychotic drugs]
for schizophrenia in the youth and elderly
SE: marked hyperprolactinemia, insomnia, gynecomastia
risperidone
[anti-psychotic drugs]
for mania and SIADH
SE: nephrogenic diabetes insipidus, teratogen (Ebstein’s anomaly)
lithium
what are the features of neuroleptic malignant syndrome?
neuroleptic malignant syndrome "fever" fever encephalopathy vitals unstable elevated CPK rigidity
[anti-depressants]
tricyclic antidepressant,
treatment of eneuresis
SE: atropine-like effects, cardiotoxicity
imipramine
[anti-depressants]
selective serotonin reuptake inhibitor (SSRI),
first lime drug for major depressive disorder
SE: erectile dysfunction, serotonin syndrome, CYP450 inhibitor
fluoxetine
[anti-depressants]
serotonin-norepinephrine reuptake inhibitor (SNRI)
SE: hypertension, CYP450 inhibitor
venlafaxine
[anti-depressants]
serotonin antagonist
SE: priapism
trazodone
[anti-depressants]
tetracyclic antidepressant, smoking cessation
SE: weight loss, priapism, seizures
bupropion
[anti-depressants]
monoamine oxidase inhibitor
SE: hypertensive crisis when taken with tyramine (cheese, wine), serotonine syndrome
phenelzine
what are the features of tricyclic antidepressant overdose?
3Cs of TCA overdose
coma
convulsions
cardiotoxicity
what drugs can cause erectile dysfunction?
erectile dysfunction "SOREE, Sore Penis Fucked Hard!" SSRIs Opiates Risperidone Ethanol Estrogens Spironolactone Propranolol Finasteride Hydrochlorothiazide
what drugs can cause priapism?
PRIAPISM "Tig-a Si Pitoy Qu, BAW!" trazodone sildenafil papaverine quetiapine bupropion alprostadil warfarin
symptoms of serotonin syndrome
serotonin syndrome "FAT CHD" fever agitation tremor clonus hyperreflexia diaphoresis
symptoms of malignant hyperthermia
malignant hyperthermia "FCHART" fever clonus hypertension acidosis rhabdomyolysis trismus
first line treatment for malignant hyperthermia (life threatening condition characterized by massive Ca release)
dantrolene
first line treatment for neuroleptic malignant syndrome
diphenhydramine
first line treatment for serotonin syndrome
sedation, paralysis, intubation and ventilation
[opioids] prototype opioid (full agonist) SSE: miosis, respiratory depression, constipation
morphine
[opioids]
severe pain, breakthrough cancer pain, available in lollipop form or transdermal patch
fentanyl
[opioids]
opioid of choice for acute pancreatitis and biliary colic, does not cause miosis
SE: seizures
Can cause HYPERTENSIVE CRISIS when used with Tyramine
meperidine
[opioids]
replacement therapy for opioid dependence
methadone
[opioids]
cough suppression
dextromethorpan, codeine
[opioids]
balanced anesthesia, frequently abused by healthcare professionals
nalbuphine
[opioids]
antidote to opioid overdose
nalOxone
[opioids]
treatment of opioid and alcohol dependence
naltrexone
which opioids have the shortest and longest half-lives?
REMIFENTANIL= shortest half-life (3-4 mins) BUPRENORPHINE = longest half-life (4-8 hrs)
what is the triad of opioid overdose?
Opioid overdose "PCR" pupillary constriction comatose state respiratory depression
[drugs of abuse]
euphoria, sleeplessness, self-confidence
amphetamine
[drugs of abuse]
sexual enhancement, hyponatremia
MDMA (ecstasy)
[drugs of abuse]
mydriasis, crack lung, teratogen (cystic cortical lesions)
cocaine
[drugs of abuse]
most dangerous hallucinogen, psychotomimetic effects, nystagmus
phencyclidine
[drugs of abuse] psychedelic effects (out of body experience), mind raveling effects, bad trips
LSD
[drugs of abuse]
dream-like state, red conjunctiva, tachycardia, dry mouth
marijuana
[sedative hypnotics]
Longest acting benzodiazepines (t1/2: 36-200 hrs)
Chlordiazepixide
[sedative hypnotics]
Most catastrophic symptom of sedative-hypnotic withdrawal
Rebound suicide
Drugs used in lethal injection
“PaPaTay”
Pancuronium (100mg)
Potassium Chloride (100mEq)
Thiopental (5g)
Early sign of malignant hyperthermia
Trismus (contraction of jaw muscles)
Drugs for Huntington Disease
Tetrabenzamine/Reserpine
MOA: deplete amine transmitters esp Dopa from nerve endings by reversibly inhibiting VMAT2, resulting in decreased uptake of monoamines
Uses: reduces chorea severity
SE: hypotension, sedation, depression, diarrhea
Tetrabenzamine/Reserpine
Drugs for Huntington disease
Drugs for Tourette Syndrome
Haloperidol/ Pimozide
MOA: blocks central D2 receptor
Uses: reduces vocal and motor tic frequency and severity
SE: Parkinsonism, dyakinesia, sedation, blurred vision, dry mouth, visual disturbance, arrhythmia
Haloperidol/Pilozide
Drugs that cause Livedo Reticularis
“HAM GQ” Hydroxyurea Amantadine Minocycline Gemcitabine Quinidine
[anti-psychotics]
Only anti-paychotic with Fatal Overdose;
Has strongest autonomic effects
SE: retinal deposits
Thioridazine
[anti-psychotics]
Least sedating atypical
Uses: MDD, cocaine dependence, autism, schizophrenia, BPD manic phase
Arpiprazole
Morphine Side Effects
Miosis Increase ICP Constipation Urinary retention Pruritus Restlessness Respiratory depression Postural hypotension Addiction liability
Anticonvulsant that should not be given intramuscularly because of unpredictable absorption and precipitation of the drug in the muscle
Phenytoin
Anticonvulsant that act by inhibiting neurotransmission through NMDA receptor antagonism
Felbamate