This study is to evaluate whether addition of dexmedetomidine, dexamethasone and magnesium sulfate as adjuvants to bupivacaine in supraclavicular Brachial Plexus Blockade (BPB) for pain management assessed by VAS score.
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-Post operative Visual analogue scale VAS score
Timeframe: Over 24 hours post operative starting from transeferring the patient to the recovery area.