Abstract
Regional anaesthesia techniques are gaining widespread popularity and are a well-accepted component of comprehensive anaesthesia care. They provide better regional analgesia as compared to other modalities like general anaesthesia and have been shown to decrease postoperative opioid requirements. Supraclavicular brachial plexus blocked, considered as the spinal anaesthesia of the upper limb, is easy to perform, safe, and provided excellent regional anaesthesia with almost no side effects when good techniques and proper precautions are employed. Bupivacaine is a commonly used and widely available since local anaesthetic that is frequently used in supraclavicular brachial plexus blocks due to its predictable profile and cost efficiency, but concerns have been raised over its potential cardiotoxicity and neurotoxicity
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