Here’s a study on the link between Finasteride and depression.
The study involved 128 test subjects who used finasteride to treat hair loss. It was discovered that a significant increase in depressive symptoms among the test subjects after just 2 months on Finasteride.
The “good news” is that the symptoms resolved on their own upon discontinuation of the medication. Interestingly, the study did find that those who experienced loss of libido were also experiencing a higher incidence of depression.
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