Mefenamic Acid

Uses

  • Treatment of primary dysmenorrhea
  • Management of mild to moderate pain
  • Reduction in nonacute abnormal uterine bleeding

Adverse Effects

Considerations for PT

  1. Monitor for dizziness, consider potential impact on falls risk.Monitor for dizziness, consider 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. Oral

Mechanism of Action

Inhibits formation of prostaglandins, resulting in decreased fever, pain, and/or inflammation.

Drug Dynamics

Time to Peak Effect

2 hours to 4 hours

Duration of Action

4 hours to 6 hours

Time to Onset

30 minutes to 60 minutes

Resources

*Some links accessed via VCH Intranet

Last updated: July 16, 2026