Inclusion Criteria:  Aged between 18-75 years. Classified as grades 1 or 2 by the American Society of Anesthesiology Classification of .physical status. Willing and able to sign a consent form.  Exclusion Criteria:  Patients under the following conditions will be excluded: Known hypersensitivity to Bupivacaine, Dexmedetomidine, and local anesthetics. Uncontrolled diabetes mellitus. Peripheral neuropathy. SevereCoagulopathy. Infection at the site of block. Pregnancy. Cardiac arrhythmias. Prescription of beta blockers. Psychological disorders.