Which opioid works best for day surgery pain? study pits morphine against hydromorphone

NCT ID NCT02223377

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

Summary

This study compares two common opioids, morphine and hydromorphone, to see which provides better pain relief with less nausea and vomiting after same-day surgeries. About 400 adults undergoing procedures like gallbladder removal or hernia repair will receive one of the two drugs in the recovery room. The goal is to find the most effective option for managing pain while minimizing side effects, helping patients recover faster and more comfortably.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

morphine and hydromorphone

What this could lead to

If one drug proves clearly better, it could become the preferred choice for managing pain after day surgeries, improving patient comfort and recovery speed.

What could go wrong

This is a single study with 402 people, and results may not apply to all surgeries or patients. Both drugs can cause nausea, itching, or drowsiness.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Pain Vomiting

As listed by the trial registrant

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

Contacts and locations

Locations

  • Hamilton Health Sciences

    Hamilton, Ontario, L8L 2X2, Canada

  • St. Joseph's Healthcare Hamilton

    Hamilton, Ontario, L8N 4A6, Canada