a barbiturate

Class: anticonvulsant, sedative, hypnotic.

Use: Management of tonic-clonic (grand mal), partial, and febrile seizures.

Preoperative sedative and others situations requiring sedation.

Acts on all levels of CNS depression.

Adverse Effects:

  • hangover
  • delirium
  • drowsiness
  • lethargy
  • vertigo
  • respiratory depression
  • hypotension
  • nausea
  • vomiting
  •  diarrhea
  • asthralgia
  • myalgia
  • serum sickness: a delayed allergic reaction to the injection of an antiserum caused by an antibody reaction to an antigen in the source.
  • physical dependance  and psychological dependance may occur.


  1. respiratory status
  2. pulse
  3. blood pressure
  4. psychological or physical dependance
  5. sedation level
  6. serum phenobarbital levels


Hazard Vallerand, April,  and Hopfer Deglin, Judith. 2007. Davis` Drug Guide for Nurses. 11th ed. F. A Davis Company, USA.


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