About the Authors

Rafael C. Dutra

Contributed equally to this work with: Rafael C. Dutra, Rafaela F. Claudino

Affiliation Department of Pharmacology, Centre of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil

Rafaela F. Claudino

Contributed equally to this work with: Rafael C. Dutra, Rafaela F. Claudino

Affiliation Department of Pharmacology, Centre of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil

Allisson F. Bento

Affiliation Department of Pharmacology, Centre of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil

Rodrigo Marcon

Affiliation Department of Pharmacology, Centre of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil

Éder C. Schmidt

Affiliation Department of Cell Biology, Embryology and Genetics, Central Laboratory of Electron Microscopy, Universidade Federal de Santa Catarina, Florianópolis, Brazil

Zenilda L. Bouzon

Affiliation Department of Cell Biology, Embryology and Genetics, Central Laboratory of Electron Microscopy, Universidade Federal de Santa Catarina, Florianópolis, Brazil

Luiz F. Pianowski

Affiliation Pianowski and Pianowski Ltda., São Paulo, Brazil

João B. Calixto

calixto@farmaco.ufsc.br

Affiliation Department of Pharmacology, Centre of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil

Competing Interests

Luiz Francisco Pianowski is proprietor of the contract research organization Pianowski & Pianowski Ltda. He has received consulting fees from Amazônia Fitomedicamentos. In addition, Luiz F. Pianowski performed previous chemical characterization of euphol and provided it for this study. Luiz Francisco Pianowski and João Batista Calixto are assigned in the patent on the analgesic action of euphol as inventors. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: RCD RFC AFB RM JBC. Performed the experiments: RCD RFC AFB RM ECS ZLB. Analyzed the data: RCD RFC AFB. Contributed reagents/materials/analysis tools: LFP JBC. Wrote the paper: RCD RFC JBC.