Only found this study about it:
Finasteride (FIN, 50 mg/kg, IP) suppressed hypothalamus–pituitary–adrenal ( HPA ) axis responsiveness.
In addition to the reduction in HPA axis hormones, other mechanisms may be involved in the effects of FIN
These results suggest that FIN impairs stress reactivity and reduces behavioral activation and impulsive behavior by altering the function of the hypothalamus–pituitary–adrenal (HPA) axis.
Find this very interesting, as you may know, many if not all steroids that bodybuilders use also suppress the HPA axis. Does anyone have any more information about this?