DIAZEPAM (Valium)

 

Name: DIAZEPAM (ValiumR)
Classification: Anxiolytic agent; sedative; anticonvulsant:
  • Used in the initial control of seizures or in the treatment of status epilepticus
  • Has no long-term anticonvulsant activity
  • Useful in the management of alcohol withdrawal and delirium tremens
  • Muscle relaxant - useful in patient with tetanus
Dose:
  • Dose must be individualized
    • Anxiolytic, sedative: 2-5 mg IV (moderate anxiety)
    • 5-10 mg IV (severe anxiety)
    • Alcohol withdrawal: 5-20 mg IV repeated as needed (intervals from 5 minutes to 4 hours)
    • Anticonvulsant: 5-10 mg IV which may be repeated at 10 - 15 min. intervals (up to 30 mg in an 8-hour period)
Administration: IV Direct
  • Rate of administration should not exceed 5 mg/min
  • Conflicting data about diazepam's solubility and stability in an infusion, therefore not recommended
Contraindications:
  • Respiratory depression and partial airway obstruction, especially when combined with narcotics or in patients with hypercarbic respiratory disease
  • Known hypersensitivity to diazepam or its components.
Adverse Effects:
  • Respiratory depression and partial airway obstruction, especially when combined with narcotics or during rapid administration
  • Hypotension
  • Bradycardia, cardiac arrest
  • Laryngospasm
  • Headache, confusion, drowsiness, dizziness, excessive sedation
  • Amnesia, lack of recall
  • Slurred speech, ataxia, impaired coordination
  • Paradoxical reaction (excitatory)
  • May worsen depression or psychosis
  • Rash, dermatitis
  • Blurred vision, diplopia
  • TWithdrawal; prolonged use of continuous benzodiazepines should be weaned

Diazepam is a vesicant and may cause thrombophlebitis, or progressive and severe tissue injury. Ensure IV patency before and after administration. Inject into the tubing of a rapidly flowing IV as close as possible to site.  Central venous administration if possible.

Caution:
  • adverse effects may be amplified in the presence of hepatic or renal failure
Antidote:
Drug Interactions:
  • diazepam + other CNS depressants = increased sedation
Monitoring Therapy:
  • Respiratory rate
  • Oxygen Saturation
  • Blood pressure
  • Response to sedation
  • Delirium screening
Adult Critical Care Protocol:
  • May be administered IV direct or by IV infusion by a nurse in Adult Critical Care
  • May be titrated by a nurse in Adult Critical Care.
  • Continuous infusions must be administered by infusion device and the pump library must be enabled.
  • Central venous access preferred due to vein irritation (consider alternate benzodiazepine for IV use)
  • Order written to provide sedation during mechanical ventilation should be discontinued when patient is no longer receiving mechanical ventilation support.


Lynne Kelly, Pharmacist, CCTC
Brenda Morgan, Clinical Nurse Specialist, CCTC
Last Update: September 19, 2018; Revised: February 13, 2023