AEDs Flashcards
This drug is an anti-arrhythmic
Phenytoin
This drug can cause fetal hydantoin syndrome
Phenytoin
Dose related ADRs: nystagmus, ataxia, drowsiness, cognitive impairment
Phenytoin
Non-dose related ADRs: GINGIVAL HYPERPLASIA, hirsutism, acne, rash, hepatotoxicity
Phenytoin
Dose related ADRs: vertigo, ataxia, diplopia, drowsiness, nausea
Carbamazepine
CNS side effects: HA, paresthesias, confusion, psychosis
Carbamazepine
Non-specific side effects: SIADH, leukopenia, thrombocytopenia, Stevens-Johnson Syndrome
Carbamazepine
This drug is good for neonatal and febrile seizures
Phenobarbital
This is a prodrug structurally related to phenobarbital
Primidone
This drug is metabolized through autoinduction
Carbamazepine
This drug is metabolized hepatically and does not induce P450
Valproic Acid/ Valproate
This drug blocks Na channels AND enhancement of GABAergic transmission
Valproic Acid/ Valproate
Dose related ADRs: N,V, abdominal pain, diarrhea, sedation, tremor, unsteadiness
Valproic Acid
Non-dose related ADRs: acute hepatic failure, acute pancreatitis
Valproic Acid
This drug inhibits calcium channels
Ethosuximide
This is the DOC for absence seizures
Ethosuximide
Dose related side effects: GI, lethargy, HA, dizziness, anxiety
Ethosuximide
This drug is metabolized by but is not an inducer of P450
Ethosuximide
ADRs: dizziness, fatigue, GI, hyponatremia, and rash. Has a 30% cross reactivity for rash with another AED
Oxcarbazepine
This drug is an analogue of GABA, has a nick PK profile, and can treat peripheral neuropathy as well as partial and GTC seizures
Gabapentin
ADRs: somnolence, dizziness, ataxia, nystagmus
Gabapentin
This drug is a competitive inhibitor of GABA transporter
Tiagabine
Dose related ADRs: dizziness, fatigue, nervousness, difficulty concentrating
Tiagabine
This drug blocks both Na and Ca channels
Lamotrigine
This drug is metabolized via Phase II
Lamotrigine
ADRs: rash, confusion, depression, N, V, diplopia, severe idiosyncratic (skin, blood) reactions
Lamotrigine
Slow taper is ESSENTIAL for this drug
Lamotrigine
This drug blocks Na channels and opens Cl channels
Topiramate
Dose related ADRs: drowsiness, parasthesias, psychomotor slowing, weight loss, renal calculi
Topiramate
It is essential to maintain adequate fluids with this drug in order to lessen the chance of developing renal calculi
Topiramate
This drug blocks sodium channels, competes for NMDA receptors, prevents AMPA receptor stimulation, and blocks Na channels
Felbamate
This drug is used for patients with Lennox-Gastaut syndrome
Felbamate
Non- dose related ADRs include aplastic anemia and liver failure
Felbamate
Dose related ADRs include anorexia, N/V, insomnia, and HA
Felbamate
This drug has a favorable PK profile and is available in parenteral form. You would need to adjust the dose for renal insufficiency
Levetiracetam
Side effects include sedation and behavioral abnormalities
Levetiracetam
This drug is a sulfonamide derivative
Zonisamide
This drug is renally AND hepatically eliminated
Zonisamide
Dose related ADRs: sedation, dizziness, cognitive impairment, nausea
Zonisamide
Non-dose related ADRs: rash, oligohydrosis, kidney stones
Zonisamide
This drug is never used alone for seizures, but rather used as an adjunctive treatment for partial onset seizures
Pregabalin
This drug is often used for peripheral neuropathy, postherpetic neuralgia, and fibromyalgia
Pregabalin
Side effects include dizziness, somnolence, dry mouth, peripheral edema, blurred vision, and weight gain
Pregabalin
This class of drug is first choice for SE
Benzodiazepines: Lorazepam or Diazepam
Besides benzos, what else can be used to treat SE?
Hydantoins (Fosphenytoin or phenytoin)
Barbituates (Phenobarbital)
This class of drugs act as positive allosteric modulators by enhancing channel gating in the presence of GABA
benzos
ADRs include: infusion rate related arrhythmias and hypotension, respiratory depression, and impairment of consciousness
benzos
This is the DOC in SE patients with IV access
Lorazepam
True or false: Diazepam is preferred over lorazepam for the treatment of SE secondary to duration of action
FALSE. Lorazepam DOA is 12-24 hours, whereas Diazepam DOA is 15 min to 2 hours
This class of drug is second line therapy for SE. It has less CNS and respiratory depression than benzos and barbs
Hydantoins
This class of drugs can cause arrhythmias, nystagmus, dizziness, and ataxia
Hydantoins
H2O soluble prodrug of phenytoin
Fosphenytoin
This drug is highly lipophilic and quickly redistributes out of the brain to other fat stores in the body
Diazepam
True or false: fosphenytoin contains propylene glycol
FALSE. Phenytoin does
This drug is 3rd line agent for SE if sz persists despite 2-3 doses of benzos and a loading dose of hydantoin
Phenobarbital
This drug is 2nd line agent for SE if sz persists after 2-3 doses of benzos and hydantoins are contraindicated
Phenobarbital
ADRs include: more CNS and respiratory depression than hydantoins
Phenobarbital
True or False: Phenobarbital contains proplyene glycol
TRUE
These are 3 AEDs that cause prolonged inactivation of the voltage-sensitive sodium channel
Phenytoin
Carbamazepine
Lamotrigine
These drugs (3) DIRECTLY enhance GABA-mediated inhibition
BZDP
Barbs
Topiramate (we think)
These drugs (3) INDIRECTLY enhance GABA- mediated inhibition
Gabapentin
Tiagabine
Vigabatrin
These 2 drugs reduce glutaminergic excitation
Phenobarbital
Topiramate
This drug has an extraordinarily long half life and time to steady state
Phenobarbital
This drug is a benzo used for refractive SE
Midazolam (Versed)