Tramadol suppositories are less suitable for post-operative pain relief than rectal acetaminophen/codeine

Area of Science:

• Anesthesiology
• Pharmacology
• Pain Management

Background:

• Post-operative pain management is crucial for patient recovery.
• Hospital formularies require effective and safe pain relief options.
• Rectal administration offers an alternative route for pain medication.

Purpose of the Study:

• To evaluate the suitability of tramadol suppositories for hospital formulary inclusion.
• To compare the efficacy and side effect profile of tramadol suppositories versus acetaminophen/codeine suppositories for post-operative pain.
• To assess the incidence of nausea and vomiting associated with tramadol suppositories.

Main Methods:

• An open randomized trial comparing tramadol suppositories (100 mg qds) with acetaminophen/codeine suppositories (1000/20 mg qds).
• Pain assessment using a Visual Analogue Scale (VAS) at rest and during movement.
• Recording of side effects, particularly nausea and vomiting, through patient interviews and nursing reports.

Main Results:

• No significant difference in pain scores between tramadol and acetaminophen/codeine groups.
• Significantly higher incidence of nausea and vomiting in the tramadol group (84%) compared to the acetaminophen/codeine group (31%).
• Relative risk of nausea with tramadol was 2.7 (95% CI: 1.3-5.3; P = 0.0001).

Conclusions:

• Tramadol suppositories demonstrated comparable efficacy to acetaminophen/codeine for mild to moderate post-operative pain.
• The high incidence of nausea and vomiting makes tramadol suppositories less suitable for acute post-operative pain management.
• Acetaminophen/codeine suppositories remain a preferred option due to a better side effect profile.