Journal Pre-proof Tracheal relaxation through calcium channel blockade of Achillea millefolium hexanic extract and its main bioactive compounds Luis Arias-Durán, Samuel Estrada-Soto, Monserrat Hernández-Morales, Fabiola Chávez-Silva, Gabriel Navarrete-Vázquez, Ismael León-Rivera, Irene Perea-Arango, Rafael Villalobos-Molina, Maximiliano Ibarra-Barajas PII: S0378-8741(19)34431-9 DOI: https://doi.org/10.1016/j.jep.2020.112643 Reference: JEP 112643 To appear in: Journal of Ethnopharmacology Received Date: 5 November 2019 Revised Date: 26 January 2020 Accepted Date: 1 February 2020 Please cite this article as: Arias-Durán, L., Estrada-Soto, S., Hernández-Morales, M., Chávez-Silva, F., Navarrete-Vázquez, G., León-Rivera, I., Perea-Arango, I., Villalobos-Molina, R., Ibarra-Barajas, M., Tracheal relaxation through calcium channel blockade of Achillea millefolium hexanic extract and its main bioactive compounds, Journal of Ethnopharmacology (2020), doi: https://doi.org/10.1016/ j.jep.2020.112643. This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier B.V.