After obtaining Local Ethics Committee of Cukurova University approval and written parental consent, this prospective, randomized, double blind, placebo-controlled study will be performed. Sixty patients scheduled for elective tonsillectomy or adenoidectomy, aged 3-8 years with American Society of Anesthesiologists physical status 1 and 2 are recruited to the study. Exclusion criteria are the presence of respiratory, hepatic, renal and cardiovascular disease, oropharyngeal or facial pathology, neuromuscular disorder, hypertension and diabetes mellitus. Patients are randomly allocated into two groups in a 1:1 ratio by a computer-generated list. Allocation is provided with sealed envelopes containing group named paper.