Comparison of the Effects of Acetaminophen Plus Ibuprofen to Treat Fever Than any of the Two Alone in Febrile Children

Background Fever is a natural response of the host to infection and a normal part of childrenʹs infectious disease. Objectives The purpose of the study was comparison of the combined treatment of acetaminophen and ibuprofen compact with each treatment alone. Methods This Double-blind clinical trial study was done on 540 children with 38°C to 41°C as body temperature. Eligible children after considering inclusion criteria divided in three groups randomly. First group of 183 patients administrated with acetaminophen, the second and the third groups of 178 and 179 patients with ibuprofen and combination. The first dose of antipyretic drug was administered to the patient under the supervision of a physician or nurse. After explanation of benefits and marginal effects to the parents if they accepted the conditions their children were admitted to the study. Parents were free if they wish to withdraw the study before completing. Information of each patient was recorded on a form. The data were analyzed by descriptive statistic, one-way ANOVA and SPSS software version 16. Results Out of sample 60.6% were boy. The mean age of children treated with acetaminophen, ibuprofen and combination therapy was 2.21 ± 2.49, 3.00 ± 2.92 and 2.22 ± 2.33 years in the order given. The results showed statistical difference in two (F = 4.45 and P = 0.012) and four hours (F = 3.11 and P = 0.045) after taking drug. A significant difference not observed in the value of temperature decrease within 2 - 4 hours after drug intake, (F = 2.49, P=0.084) but in the time of 0-2 (P = 0.012) and 4-6 hours (P = 0.001) was observed. Conclusions The findings of this study showed that acetaminophen is more effective for a short time but the combination in the long time when ibuprofen placed in the middle position with the respect of time.