About: Phenytoin     Goto   Sponge   Distinct   Permalink

An Entity of Type : http://linked.opendata.cz/ontology/drugbank/Drug, within Data Space : linked.opendata.cz associated with source document(s)

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http://linked.open...gbank/description
  • An anticonvulsant that is used in a wide variety of seizures. It is also an anti-arrhythmic and a muscle relaxant. The mechanism of therapeutic action is not clear, although several cellular actions have been described including effects on ion channels, active transport, and general membrane stabilization. The mechanism of its muscle relaxant effect appears to involve a reduction in the sensitivity of muscle spindles to stretch. Phenytoin has been proposed for several other therapeutic uses, but its use has been limited by its many adverse effects and interactions with other drugs. [PubChem] (en)
http://linked.open...y/drugbank/dosage
http://linked.open...generalReferences
  • # https://www.pharmgkb.org/pathway/PA145011115 (en)
http://linked.open...gy/drugbank/group
  • approved (en)
http://linked.open...drugbank/halfLife
  • 22 hours (range of 7 to 42 hours) (en)
http://linked.open...ugbank/indication
  • For the control of generalized tonic-clonic (grand mal) and complex partial (psychomotor, temporal lobe) seizures and prevention and treatment of seizures occurring during or following neurosurgery. (en)
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Title
  • Phenytoin (en)
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http://linked.open...mechanismOfAction
  • Phenytoin acts on sodium channels on the neuronal cell membrane, limiting the spread of seizure activity and reducing seizure propagation. By promoting sodium efflux from neurons, phenytoin tends to stabilize the threshold against hyperexcitability caused by excessive stimulation or environmental changes capable of reducing membrane sodium gradient. This includes the reduction of post-tetanic potentiation at synapses. Loss of post-tetanic potentiation prevents cortical seizure foci from detonating adjacent cortical areas. (en)
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