Levorphanol

Uses

  • Management of severe pain

Adverse Effects

Considerations for PT

  1. Consider risk of dizziness and drowsiness and potential impact on falls risk.Consider risk of dizziness and drowsiness and potential impact on falls risk.
  2. Consider timing for pain relief prior to Physiotherapy intervention Consider timing for pain relief prior to Physiotherapy intervention

Route of Administration

  1. Intramuscular (IM)Intramuscular (IM)
  2. Intravenous (IV)Intravenous (IV)
  3. Oral

Mechanism of Action

A synthetic opioid that alters perception of pain by interacting with specific opioid receptors in the central nervous system.

Drug Dynamics

Time to Peak Effect

30 minutes to 60 minutes

Duration of Action

6 hours to 15 hours

Time to Onset

15 minutes to 30 minutes

Resources

*Some links accessed via VCH Intranet

Last updated: April 30, 2026