Ketamine Versus Magnesium as Analgesic Adjuvants in Pediatric Adenotonsillectomy

"Ketamine hydrochloride will be made in a 20 ml syringe in a concentration of 1.25 mg/ml. Patients will receive IV ketamine hydrochloride in a dose of 0.5 mg/kg (equivalent to 0.4 ml/kg) over 10 min.~The coordinator of the study will prepare blinded syringes for each group, while the anesthetist who will be in charge of anesthetic management during the operation will be unaware of the study medication."

"A 20 ml syringe will contain magnesium sulphate in a concentration 100 mg/ml (10%). Patients will receive 40 mg/kg of IV magnesium sulphate (equivalent to 0.4 ml/kg) over 10 min.~The coordinator of the study will prepare blinded syringes for each group, while the anesthetist who will be in charge of anesthetic management during the operation will be unaware of the study medication."