• Özge Can, Güçlü Selahattin Kıyan, and Sercan Yalçınlı.
• Department of Emergency Medicine, Ege University, 35100 Izmir, Turkey. Electronic address: ozge.can@ege.edu.tr.
• Am J Emerg Med. 2021 Aug 1; 46: 102-106.

ObjectiveFever is one of the frequent reasons for admission to the emergency department. Studies comparing oral forms of non-steroidal anti-inflammatory drugs (NSAIDs) and paracetamol with intravenous (IV) forms for fever are common in the literature. Our study is the first emergency department study comparing IV forms of ibuprofen and paracetamol in the treatment of febrile patients.MethodsA randomized, double-blind study was conducted in a tertiary university emergency department for a six-month period. Patients aged 18-65 years who had a fever of ≥38.0 °C were included. Patients were administered 400 mg of IV ibuprofen and 1000 mg of IV paracetamol. The primary aim of the study was to determine whether there was a difference in the effect of the two drugs on fever. The secondary aim was to investigate whether there was a difference in terms of numeric rating scale (NRS) measurements and the need for additional antipyretic therapy.ResultsA total of 200 people, 100 of whom were female, were included in the study. The mean age was 30.77 ± 10.61 years. The mean initial temperature for ibuprofen and paracetamol was 38.79 ± 0.470 °C and 38.70 ± 0.520 °C, respectively, with no difference noted between the groups (p = 0.380). It was found that both drugs significantly provided fever control in the first 30 min (p < 0.001), with no difference between them in terms of fever reduction (p = 0.980). Both drugs significantly improved in accompanying symptoms, although both drugs did not show superiority to each other (p = 0.0226). When evaluated in terms of a need for rescue medication, no significant difference was found between the two drugs (p = 0.404). No side effects were encountered during the study.ConclusionIn adult age group patients admitted to the emergency department with high fever, the IV forms of 1000 mg paracetamol and 400 mg ibuprofen effectively and equally reduce complaints, such as fever and accompanying pain. They can be effectively used as each other's rescue medicine and as an alternative to each other in patients with comorbid diseases.Copyright © 2021 Elsevier Inc. All rights reserved.

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