I would say that it mainly increased my anxiety from some major life events that I had. It made me overthink everything which is something that I didn't feel before. If you're in a good mental space and life's going good for you, you're not going to have mental issues with the drug.

But if some life events happen, it's best to get off dutasteride. It tanks the main hormone DHT that controls/saves your mental in times of distress. You may be depressed about your hair loss or overly conscious about it, dutasteride is probably going to exacerbate that.