this is a randomized controlled study ,patients will be randomly divided into 2 groups , Group A will receive caudal block using 1ml/kg Bupivacaine +0.5u/kg fentanyl, Group B will receive caudal block 50 mg magnesium sulfate added to (1ml/kg Bupivacaine +0.5u/kg fentanyl)
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
time to first requirement of rescue analgesia
Timeframe: 24 hours