Overview Preemptive Chlorepheniramine Maleate Reducing Postoperative Agitation Status: Completed Trial end date: 2019-07-30 Target enrollment: Participant gender: Summary The aim of the study is to identify the role of preoperative chlorepheniramine maleate on alleviating or reducing the severity of postoperative agitation following FESS procedures. Phase: N/A Details Lead Sponsor: Ain Shams UniversityTreatments: ChlorpheniramineMaleic acid