Treatment for dilantin toxicity changes

PHENYTOIN TOXICITY

Phenytoin is a primary anticonvulsant for all /zocor-40-mg-tablet-30-mg.html of epilepsy except absence. Dilantin toxicity is useful in the treatment of status epilepticus in conjunction with other more rapidly acting anticonvulsants. Phenytoin has been used prophylactically in a variety of settings head trauma, alcohol withdrawal, drug overdosebut has so far only proven useful in the setting treatment for dilantin toxicity changes treatment for dilantin toxicity changes trauma.

Phenytoin is probably the most widely used anticonvulsant in the world and has been more thoroughly studied and evaluated than antagonist of coumadin other. Phenytoin has been employed in the management of chronic changes syndromes. Historically, it has also been used as an antidysrhythmic treatment for dilantin toxicity changes, especially in the setting of digoxin toxicity, but it is treatment for longer considered a first-line agent.

Death or severe morbidity is unusual following intentional phenytoin overdose, and an intact outcome is typical if good supportive care treatment for dilantin provided.

Most phenytoin-related deaths have been caused treatment for dilantin toxicity changes rapid intravenous administration or hypersensitivity reactions. The acute life- and limb-threatening manifestations of treatment for dilantin toxicity changes toxicity changes may be readily treated using conventional therapies immediately here to any acute care facility and can be prevented by adhering to the correct methods of administration.

Phenytoin exerts its anticonvulsant effect by blocking voltage-sensitive sodium channels in the neurons. Phenytoin stabilizes sodium channels in an inactive state, and this treatment for dilantin toxicity changes effect, similar to the action of local anesthetics, is dependent on the voltage and frequency of firing of the neuron.

Treatment for dilantin toxicity changes

Phenytoin treatment for dilantin toxicity changes no effect on the amplitude or duration of the action potential. Rather, it limits the ability of the neuron to fire trains of treatment for dilantin toxicity changes potentials at high frequency by delaying recovery. In this fashion it suppresses repetitive neuronal activity and prevents the spread of a seizure focus.

At higher concentrations, phenytoin delays activation of outward potassium currents in nerves and prolongs the neuronal refractory period. It may also exert its anticonvulsant effect by learn more here calcium channels or g-aminobutyric acid GABA receptors, although this is not yet fully established. The toxic effects of phenytoin depend on the treatment for dilantin toxicity changes of administration, the duration of exposure, and the dosage used.

Of /allopurinol-fatigue-zinc.html determinants of toxicity, the most important is the route of administration.

The intravenous administration of phenytoin carries the greatest risk, primarily due to the other constituents of treatment for dilantin toxicity changes parenteral vehicle The most serious dilantin toxicity changes following intravenous administration are cardiovascular bradycardia, hypotension, asystolealthough tissue necrosis and sloughing following extravasation have been described.

Major cardiac toxicity only occurs following parenteral administration. It is more common in the elderly and those with underlying cardiac disease, but has been described in young healthy patients as treatment for dilantin toxicity changes. Many of the side effects of the oral treatment for dilantin toxicity changes are treatment for and are predictable at higher plasma concentrations.

At higher levels, central nervous system CNS depression and other cognitive effects confusion, dizziness, loss of concentration and memory are seen.

Only two areas of the brain normally exhibit spontaneous neuronal burst discharge: Phenytoin's ability to suppress these areas may treatment for dilantin toxicity changes in impaired memory and balance, respectively. Paradoxically, very high levels of phenytoin may be associated with seizures.

Treatment for dilantin toxicity changes

Acute oral overdose is usually manifested by nystagmus, nausea and vomiting, ataxia, treatment for dilantin toxicity changes CNS depression. Deaths from oral ingestion of phenytoin are extremely rare.

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