In recent years, government agencies around the world, including in the United States, have updated the product labeling of finasteride to include depression as a possible side effect—and one that may persist even after discontinuing treatment. Summary. Depression is found among people who take Finasteride, especially for people who are male, 60+ old , have been taking the drug for 2 - 5 years, also take medication Propecia, and have Androgenetic alopecia. Finasteride is a competitive inhibitor of 5 alpha-reductase enzyme, and is used for treatment of benign prostatic hyperplasia and androgenetic alopecia. Animal studies have shown that finasteride might induce behavioral changes. Additionally, some cases of finasteride-induced depression have been Par ailleurs, des troubles sexuels (diminution de la libido, troubles de l'érection et de l'éjaculation) figurent également parmi les effets indésirables du finastéride. Side Effects. Drug information provided by: IBM Micromedex. Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. How to use Finasteride. Read the Patient Information Leaflet provided by your pharmacist before you start taking finasteride and each time you get a refill. Irving MS. Depressive Symptoms and Suicidal Thoughts Among Former Users of Finasteride With Persistent Sexual Side Effects. J Clin Psychiatry DOI : 10.4088/JCP.12m07887 Hair-Loss Drug Linked to Depression By Nancy Walsh, MedPage Today , 8 aout 2012 The use of finasteride for the treatment of male pattern hair loss has recently been the focus of media and internet attention for potential irreversible sexual dysfunction and severe depression. Our Proscar (finasteride) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. In Summary. Commonly reported side effects of finasteride include: impotence and decreased libido. See below for a comprehensive list of adverse effects.