Inclusion Criteria:  -  Inclusion criteria:  American Society of Anesthesiologists (ASA) physical status I, II patients who will be scheduled for elective abdominal hysterectomy. Age range 18-70 years  Exclusion Criteria:  Patient refusal.  Significant renal, hepatic, and cardiovascular diseases. History of allergy to one of the study drugs. Any contraindication to regional anesthesia such as local infection or bleeding disorders. Chronic opioid use, history of chronic pain and cognitive disorders.