Best Analgesia for Biliary Colic

Initial Management

• The British Medical Journal recommends that analgesia should be administered quickly to provide pain relief within 30 minutes of assessment 4, 3
• The intramuscular route is preferred for initial treatment as oral and rectal administration are considered unreliable, and intravenous administration may be impractical in certain settings 3, 5
• Complete or acceptable pain control should be maintained for at least six hours 3

First-Line Treatment

• Intramuscular diclofenac 75 mg is the recommended first-line treatment for biliary colic when the diagnosis is clear and there are no signs of complications 1, 2, 3

Alternative Options

• When NSAIDs are contraindicated, an opiate combined with an antiemetic (such as morphine sulfate and cyclizine) should be given 3, 5

Monitoring and Follow-up

• If pain is not alleviated within 60 minutes of initial treatment, hospital admission should be arranged 3, 6
• Patients should be followed up (via telephone call) one hour after initial assessment and administration of analgesia 3, 7
• Abrupt recurrence of severe pain warrants immediate hospital admission 3, 6

Important Considerations

• Patients with shock or fever must be admitted to hospital immediately 4, 3
• Patients should be instructed to drink plenty of fluids and, if possible, void urine into a container to catch any identifiable calculus 3, 6
• Alternative diagnoses should be considered in patients over 60 years of age (leaking abdominal aortic aneurysm) or women with delayed menses (ectopic pregnancy) 7, 8

Common Pitfalls and Caveats

• Avoid delaying analgesia while waiting for diagnostic tests 3
• Avoid issuing limited quantities of oral or rectal analgesics for patients with recurrent pain due to potential for drug misuse 3, 6