Dezocine for postoperative wound pain

Area of Science:

• Pharmacology
• Anesthesiology
• Pain Management

Background:

• Postoperative pain management is crucial for patient recovery.
• Opioid analgesics are commonly used but can have significant side effects.
• Novel analgesics with improved efficacy and safety profiles are needed.

Purpose of the Study:

• To evaluate the analgesic effectiveness and safety of dezocine compared to morphine and placebo in patients with moderate to severe postoperative pain.
• To determine the dose-response relationship for dezocine in postoperative pain management.

Main Methods:

• A randomized, double-blind, placebo-controlled study involving 160 patients with moderate to severe postoperative pain.
• Patients received a single intramuscular injection of dezocine (10 mg or 15 mg), morphine (10 mg), or placebo.
• Efficacy was assessed using verbal and analog pain intensity scales, pain relief assessments, and investigator's overall evaluation.

Main Results:

• Dezocine 10 mg demonstrated comparable efficacy and duration of action to morphine 10 mg.
• Dezocine 15 mg showed significantly greater analgesic effectiveness than both dezocine 10 mg and morphine 10 mg.
• Both dezocine and morphine were significantly more effective than placebo in relieving postoperative pain.
• Adverse events such as nausea and sedation were infrequent and did not statistically differ between treatment groups and placebo.
• Minor decreases in blood pressure, heart rate, and respiratory rate were observed with both active treatments.

Conclusions:

• Dezocine is an effective analgesic for moderate to severe postoperative pain.
• A 15 mg dose of dezocine offers superior pain relief compared to a 10 mg dose or 10 mg of morphine.
• Dezocine exhibits a favorable safety profile, comparable to morphine, with minimal adverse effects.