TLDR Left-handed men experience more sexual side effects from finasteride treatment.
This pilot study investigated the relationship between hand preference, sexual function, and the anti-androgen finasteride in men undergoing treatment for male pattern baldness. The study found that left-handed men reported more sexual side effects than right-handed men, suggesting that hand preference may be a predictor of sexual side effects in men taking finasteride. However, the study had limitations, including a small sample size and lack of a control group, and further research is needed to confirm these findings.
41 citations,
October 2011 in “Journal of Dermatology” Finasteride 1 mg effectively and safely increases hair growth in Japanese men with hair loss.
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March 2011 in “The Journal of Sexual Medicine” Finasteride for hair loss can cause long-lasting sexual side effects like low libido and erectile dysfunction.
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December 2010 in “The Journal of Sexual Medicine” Some patients taking finasteride or dutasteride may have ongoing sexual problems and depression even after stopping the medication.
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December 2010 in “Journal of Cosmetic Dermatology” Finasteride may increase depression by reducing brain cell growth.
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July 2007 in “The Journal of Sexual Medicine” Knowing about finasteride's sexual side effects increases reported dysfunction.
19 citations,
April 2013 in “BJUI” Left-handed men experience more sexual side effects from finasteride treatment.
225 citations,
July 2007 in “The Journal of Sexual Medicine” Knowing about finasteride's sexual side effects increases reported dysfunction.