Inclusion Criteria:  ASA physical status I, II. Age group 40-65 years old. Co-operative patients aware of the instructions.  Exclusion Criteria:  Diagnosis of cognitive impairment or mental disorder. Hypersensitivity to any of the used drugs. Contraindication to local anesthesia e.g. Coagulation disorder. Severe pulmonary disease e.g. (obstructive sleep apnea). Use of sedative medications within the previous month. Chronic renal and cardiac disorder e.g. (chronic renal failure, heart failure).