# Comparison of Butorphanol and Tramadol Associated Patient-Controlled Analgesia (PCA) After Hysterectomy

> **NCT00510666** · PHASE4 · COMPLETED · sponsor: **Nanjing Medical University** · enrollment: 841 (actual)

## Conditions studied

- Postoperative Pain
- Hysterectomy

## Interventions

- **DRUG:** Saline
- **DRUG:** Butorphanol tartrate
- **DRUG:** Tramadol Hydrochloride
- **DRUG:** Saline

## Key facts

- **NCT ID:** NCT00510666
- **Lead sponsor:** Nanjing Medical University
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2007-01
- **Primary completion:** 2007-05
- **Final completion:** 2007-05
- **Target enrollment:** 841 (ACTUAL)
- **Last updated:** 2009-03-31

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00510666

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00510666, "Comparison of Butorphanol and Tramadol Associated Patient-Controlled Analgesia (PCA) After Hysterectomy". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT00510666. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*