In recent years, depression occurs frequently. Given the long duration of the disease and the high risk of recurrence, the treatment of depression requires long-term medication. Zhi-Zi-Hou-Po Decoction (ZZHPD) has been used in clinical treatment of depression and related diseases for many years, and the potential toxic damage caused by its long-term use has gradually emerged. Existing research methods that expose toxicity by a one-time administration of large doses cannot provide a reference for clinical safe drug use. In this study, the potential toxicity of ZZHPD in repeated administration was studied by urinary metabolomics with nondestructive sampling. Based on ultra-high performance liquid chromatography-quadruple-Exactive Orbitrap mass spectrometry (UHPLC-Q-Exactive Orbitrap-MS) and chemometrics, 33 differential biomarkers, such as 3-hydroxybutyric acid, indole sulfuric acid, hippuric acid and citric acid, were screened and dynamically tracked. The changes of some endogenous substances showed obvious time dependence. Further analysis of these time-dependent components in combination with network pharmacology revealed that the potential hepatotoxicity and nephrotoxicity of ZZHPD were related to the disorders of amino acid metabolism, energy metabolism, lipid metabolism, nucleotide metabolism and gut microflora metabolism pathway. This study can better grasp the occurrence and development of drug toxicity, and provide reference for rational and safe drug use and potential toxicity prevention of ZZHPD.Copyright © 2020. Published by Elsevier B.V.
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