Vitamin c may cut opioid need after emergency room pain

NCT ID NCT05555576

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether taking high-dose vitamin C for two weeks can lower the amount of opioid pain pills people need after leaving the emergency room with acute muscle or bone pain. About 464 adults will be randomly assigned to receive either vitamin C or a placebo. The goal is to see if vitamin C can safely reduce opioid use and help manage pain.

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Conditions

The condition(s) this trial relates to.

Acute Pain Emergencies Pain

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Hôpital du Sacré-Coeur de Montréal

    RECRUITING

    Montreal, Quebec, H4J 1C4, Canada

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