January 2011 in “Reactions Weekly” St. John's Wort may reduce the effectiveness of finasteride by increasing its breakdown in the body.
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January 2009 in “PubMed” Finasteride treatment can decrease certain steroids and increase others, possibly leading to depression symptoms in some cases.
7 citations
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November 2014 in “Clinical Therapeutics” Finasteride and tamsulosin hydrochloride can be safely taken together without significant interaction.
St John’s Wort can change how finasteride works in the body.