Popular hair-loss pill linked to depression and suicide

Finasteride, a common hair-loss drug, has long been tied to depression and suicide, but regulators ignored the warnings. Prof. Mayer Brezis’s review exposes global data showing psychiatric harm and a pattern of inaction by Merck and the FDA. Despite its cosmetic use, the drug’s effects on brain chemistry can be devastating. Brezis calls for urgent regulatory reforms and post-marketing studies to protect public health.