Fig. 1 The FAF-Drugs4 and FAF-QED servers Fig. 1 The FAF-Drugs4 and FAF-QED servers. Users can upload or paste molecular files and run FAF-Drugs4 or FAF-QED. For both services, the molecules are curated (e.g. standardized, salts and duplicates are removed, etc.) prior to the filtering steps. Computed data can be visualized online and corresponding output files downloaded From: FAF-Drugs4: free ADME-tox filtering computations for chemical biology and early stages drug discovery Bioinformatics. 2017;33(22):3658-3660. doi:10.1093/bioinformatics/btx491 Bioinformatics | © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com