St. John’s wort changes how finasteride works in the body, possibly affecting its effectiveness.
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January 1997 in “Principles of Medical Biology” This article reviews the role of enzymatic processes in drug and toxin metabolism, emphasizing their impact on solubility and elimination, without presenting new clinical findings.
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December 2013 in “Xenobiotica” This study found that the metabolic profile of finasteride in pigs closely matches that of humans, supporting the use of pigs for studying human drug metabolism.
November 2025 in “Drug Testing and Analysis” This study investigated the metabolic pathways of epristeride, a new Type II 5α‐reductase inhibitor, using in vitro models and found that its metabolites show significant interactions with key proteins, suggesting implications for its role in doping control.
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May 2019 in “PubMed” This study reported that the expression of sulfotransferase enzymes in hair follicles remained stable during treatment with topical minoxidil, indicating consistent metabolic activity throughout the treatment period.