Antiepileptics Drugs Flashcards
antiepileptic drugs
prescription drugs that prevent or reduce the severity of epilepsy and different types of epileptic seizures, not just convulsive seizures
anticonvulsants
substances or procedures that prevent or reduce the severity of epileptic or other convulsive seizures
autoinduction
a metabolic process in which a drug stimulates the production of enzymes that enhance it’s own metabolism over time, which leads to a reduction in therapeutic drug concentrations
convulsion
a type of seizure involving excessive stimulation of neutrons in the brain and characterised by the spasmodic contraction of voluntary muscles
electroencephalogram (EEG)
a recording of the electrical activity that arises from spontaneous currents in nerve cells in the brain, derived from electrodes placed on the outer skull
epilepsy
a general term for any of a group of neurologic disorders characterised by recurrent episodes of convulsive seizures, sensory disturbances, abnormal behaviour, loss of consciousness, or any combination of these
generalised onset seizures
seizures originating simultaneously in both cerebral hemispheres
gingival hyperplasia
overgrowth of gum tissue and often a side effect of phenytoin
partial onset seizures
seizures originating in a more localised region of the brain (also called focal seizures)
primary epilepsy
epilepsy in which there is no identifiable cause (also known as idiopathic)
seizure
excessive stimulation of neutrons in the brain leading to a sudden burst of abnormal neuron activity that results in temporary changes in brain function, primarily affecting sensory and motor activity
status epilepticus
a seizure disorder that characterised by generalised tonic-clonic convulsions that occur repeatedly; considered a medical emergency
tonic-clonic seizures
seizures involving initial muscular contraction throughout the body (tonic phase), progressing to alternating contraction and relaxation (clonic phase)
antiepileptic drugs: barbiturates
phenobarbital [Generic], primidone [Mysoline]
antiepileptic drugs: hydantoins
phenytoin [Dilantin], fosphenytoin [Cerebyx]
antiepileptic drugs: iminostilbenes
carbamazepine [Tegretol, Carbatrol], oxcarbazepine [Trileptal]
antiepileptic drugs: miscellaneous
gabapentin [Neurontin], lacosamide [Vimpat], lamotrigine [Lamictal], levetiracetam [Keppra], pregabalin [Lyrica], tiagabine [Gabitril], topiramate [Topamax], valproic acid [Depakene, Depakote, Depacon], zonisamide [Zonegran]
antiepileptic adverse effects (first-line drugs): barbiturates (e.g. phenobarbital, primidone)
dizziness, drowsiness, lethargy, paradoxical restlessness
antiepileptic adverse effects (first-line drugs): hydantoins (e.g. phenytoin, fosphenytoin)
nystagmus, ataxia, drowsiness, rash, gingival hyperplasia, thrombocytopenia, agranulocytosis, hepatitis
antiepileptic adverse effects (first-line drugs): iminostilbenes (e.g. carbamazepine, oxcarbazepine)
nausea, headache, dizziness, unusual eye movements, visual change, behavioural changes, rash, abdominal pain, abnormal gait
antiepileptic adverse effects (first-line drugs): valproic acid and derivatives including valproate sodium and divalproex sodium
dizziness, drowsiness, GI upset, weight gain, hepatotoxicity, pancreatitis
antiepileptic adverse effects (adjunct drugs): gabapentin
dizziness, drowsiness, nausea, visual and speech changes, oedema
antiepileptic adverse effects (adjunct drugs): pregabalin
dizziness, drowsiness, peripheral oedema, blurred vision
antiepileptic adverse effects (adjunct drugs): lamotrigine
drowsiness, ataxia, headache, nausea, blurred or double vision
antiepileptic adverse effects (adjunct drugs): levetiracetam
dizziness, drowsiness, hyperactivity, behaviour changes (e.g. anxiety, hostility, agitation, or suicidal ideation), uncoordination
antiepileptic adverse effects (adjunct drugs): succinimides (e.g. ethosuximide)
nausea, abdominal pain, dizziness, drowsiness
antiepileptic adverse effects (adjunct drugs): tiagabine
dizziness, drowsiness, agitation, asthenia, GI upset, abdominal pain, rash, tremor
antiepileptic adverse effects (adjunct drugs): topiramate
dizziness, drowsiness, GI upset, ataxia
antiepileptic adverse effects (adjunct drugs): zonisamide
drowsiness, anorexia, ataxia, confusion, agitation, cognitive impairment
antiepileptic drugs
carbamazepine, ethosuximide, gabapentin, lamotrigine, levetiracetam, oxcarbazepine, phenobarbital and primidone, phenytoin and fosphenytoin, pregabalin, tiagabine, topiramate, valproic acid, zonisamide