Inclusion Criteria:  ASA physical status I and ∏ primigravidas aged 21-40 years BMI ˂ 40 body weight ˃ 60 kg singleton pregnancy gestational age of ≥37 weeks undergoing elective caesarean section under spinal anesthesia.  Exclusion Criteria:  Parturient refusal parturient with a BMI > 40 body weight < 60 kg ASA physical status ≥ III known local anesthetic (LA) allergy •contraindications to spinal anesthesia parturients who received analgesics in the past 24 hours infection at the site of the block.