Assertion: phenytoin's effect | /r/RelatedTo | its action
Facets:
value: during depolarization
type: TEMPORAL
value: at the sodium channels
type: LOCATION
value: primarily
type: DEGREE
Source sentences:
text: Phenytoin is an antiepileptic drug with several pharmacologic actions, including ion conductance, Na-K ATPase activity, synaptic transmission, and neurotransmitter release; the antiepileptic effects of phenytoin are thought to be primarily related to its action at the sodium channels during depolarization, preventing repetitive neuronal firing.