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Difenilhidantoina
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Difenilhidantoina Brand names, Difenilhidantoina Analogs

Difenilhidantoina Brand Names Mixture

  • Dilantin W Phenobarbital 15mg (Phenobarbital + Phenytoin Sodium)
  • Dilantin W Phenobarbital 30mg Cap (Phenobarbital + Phenytoin Sodium)

Difenilhidantoina Chemical_Formula

C15H12N2O2

Difenilhidantoina RX_link

http://www.rxlist.com/cgi/generic/phenyt.htm

Difenilhidantoina fda sheet

Difenilhidantoina FDA

Difenilhidantoina msds (material safety sheet)

Difenilhidantoina MSDS

Difenilhidantoina Synthesis Reference

Henze, U.S. Pat. 2,409,754 (1946)

Difenilhidantoina Molecular Weight

252.268 g/mol

Difenilhidantoina Melting Point

286 oC

Difenilhidantoina H2O Solubility

32 mg/L

Difenilhidantoina State

Solid

Difenilhidantoina LogP

2.241

Difenilhidantoina Dosage Forms

Capsule (extended release); Liquid; Solution; Suspension; Tablet

Difenilhidantoina 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.

Difenilhidantoina Pharmacology

Phenytoin is an antiepileptic drug which can be useful in the treatment of epilepsy. The primary site of action appears to be the motor cortex where spread of seizure activity is inhibited. Phenytoin reduces the maximal activity of brain stem centers responsible for the tonic phase of tonic-clonic (grand mal) seizures. Phenytoin acts to damp the unwanted, runaway brain activity seen in seizure by reducing electrical conductance among brain cells. It lacks the sedation effects associated with phenobarbital. There are some indications that phenytoin has other effects, including anxiety control and mood stabilization, although it has never been approved for those purposes by the FDA.

Difenilhidantoina Absorption

Bioavailability 70-100% oral, 24.4% for rectal and intravenous administration. Rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours.

Difenilhidantoina side effects and Toxicity

Oral, mouse: LD50 = 150 mg/kg; Oral, rat: LD50 = 1635 mg/kg. Symptoms of overdose include coma, difficulty in pronouncing words correctly, involuntary eye movement, lack of muscle coordination, low blood pressure, nausea, sluggishness, slurred speech, tremors, and vomiting.

Difenilhidantoina Patient Information

Patients taking phenytoin should be advised of the importance of adhering strictly to the prescribed dosage regimen, and of informing the physician of any clinical condition in which it is not possible to take the drug orally as prescribed, eg, surgery, etc.

Patients should also be cautioned on the use of other drugs or alcoholic beverages without first seeking the physician's advice.

Patients should be instructed to call their physician if skin rash develops.

The importance of good dental hygiene should be stressed in order to minimize the development of gingival hyperplasia and its complications.

Do not use capsules which are discolored.

Difenilhidantoina Organisms Affected

Humans and other mammals