-Background -Helicobacter pylori infection presents high prevalence in developing countries

Objective: To evaluate temperature changes in febrile children that received a single oral dose of ibuprofen (10 mg/kg), the dose recommended for high fever, or dipyrone (15 mg/kg), the dose recommended by the manufacturer, at 2, 3, 4, 5, 6, 7 and 8 hours after administration.Methods: This open-label randomized (1:1) controlled clinical tried enrolled 80 febrile boys and girls aged 6 months to 8 years with baseline axillary temperatures of 38.0 to 40.3 °C. The children were divided into two groups: high fever (> 39.1 °C) and low-grade fever (38.0 to 39.1 °C). The antipyretic effect was analyzed according to discontinuity, safety, response to treatment, tolerability and therapeutic efficacy. Results:Of the 80 children, 31 remained febrile during the 8 hours (38.8%), but 100% had a temperature decrease in the first 2 hours after the administration of either medication. In the high fever group, the temperature fell in 11 children treated with ibuprofen up to the 5th hour (100.00%) and in the 11 that received dipyrone, up to the third hour (100.00%). The difference in antipyretic efficacy of ibuprofen in the high fever group was statistically significant in the 3rd and 4th hours, and in the low-grade fever group, in the 3rd hour after medication. Conclusions:A single oral dose of ibuprofen has a greater antipyretic efficacy than dipyrone, particularly when the fever is high. Both drugs were well tolerated and safe in the short term.J Pediatr (Rio J). 2011;87(1):36-42: Fever, ibuprofen, dipyrone, nonsteroidal anti-inflammatory drugs, children. ResumoObjetivo: Analisar o comportamento da temperatura em crianças febris medicadas com dose oral única do ibuprofeno (10 mg/kg), dose recomendada para febre alta, comparado à dipirona (15 mg/kg), dose preconizada pelo fabricante, após 2, 3, 4, 5, 6, 7 e 8 horas da medicação antitérmica.Métodos: Ensaio clínico, aberto e randomizado (1:1), em crianças de ambos os sexos, com doenças febris, com idade entre 6 meses e 8 anos, temperatura axilar basal entre 38,0 e 40,3 °C, e divididas em dois grupos: febre alta (> 39,1 °C) e febre baixa (38,0 a 39,1 °C). A análise do comportamento baseou-se nos critérios de descontinuidade, segurança, resposta ao tratamento, tolerabilidade e eficácia terapêutica.Resultados: Das 80 crianças, 31 permaneceram afebris ao longo de 8 horas (38,8%), 100,0% obtiveram decréscimo da temperatura com ambas as medicações nas 2 primeiras horas. No grupo de febre alta, 11 crianças medicadas com ibuprofeno foram mantidas até a 5ª hora (100,0%), e 11 com dipirona até a 3ª hora (100,0%). A eficácia antipirética na febre alta foi estatisticamente significante a favor do ibuprofeno na 3ª e na 4ª hora, e, na febre baixa, na 3ª hora após a medicação. Conclusões:Este estudo demonstrou que, em dose oral única, o ibuprofeno proporciona atividade antipirética mais acentuada do que a dipirona, principalmente na febre alta. Ambas as medicações foram bem toleradas e seguras em curto prazo.J Pediatr (Rio J). 2011;87(1):36-42: Febre, ibuprofeno, dipirona, anti-inflamatór...

Objective: To evaluate temperature changes in febrile children that received a single oral dose of ibuprofen (10 mg/kg), the dose recommended for high fever, or dipyrone (15 mg/kg), the dose recommended by the manufacturer, at 2, 3, 4, 5, 6, 7 and 8 hours after administration. Methods:This open-label randomized (1:1) controlled clinical tried enrolled 80 febrile boys and girls aged 6 months to 8 years with baseline axillary temperatures of 38.0 to 40.3 °C. The children were divided into two groups: high fever (> 39.1 °C) and low-grade fever (38.0 to 39.1 °C). The antipyretic effect was analyzed according to discontinuity, safety, response to treatment, tolerability and therapeutic efficacy. Results:Of the 80 children, 31 remained febrile during the 8 hours (38.8%), but 100% had a temperature decrease in the first 2 hours after the administration of either medication. In the high fever group, the temperature fell in 11 children treated with ibuprofen up to the 5th hour (100.00%) and in the 11 that received dipyrone, up to the third hour (100.00%). The difference in antipyretic efficacy of ibuprofen in the high fever group was statistically significant in the 3rd and 4th hours, and in the low-grade fever group, in the 3rd hour after medication. Conclusions:A single oral dose of ibuprofen has a greater antipyretic efficacy than dipyrone, particularly when the fever is high. Both drugs were well tolerated and safe in the short term. This study received a grant from the research fund sponsored by Janssen Cilag Farmacêutica. Financial support: Janssen Cilag Farmacêutica.Suggested citation: Magni AM, Scheffer DK, Bruniera P. Antipyretic effect of ibuprofen and dipyrone in febrile children.