NCLEX RN Practice Question # 851

NCLEX Examination.

Practice question # 851.


nclex examination



Formerly one of the most widely used anticonvulsants, the longacting barbiturate phenobarbital is now used less frequently because of its sedative effects. Phenobarbital is sometimes used for long-term treatment of epilepsy and is prescribed selectively for treatment of status epilepticus if hydantoins aren’t effective.

Adverse reactions

Adverse reactions to phenobarbital and mephobarbital include:

  • Drowsiness
  • Lethargy
  • Dizziness
  • Nystagmus, confusion, and ataxia (with large doses)
  • Laryngospasm, respiratory depression, and hypotension (when administered IV).

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